CN218846387U

CN218846387U - Self-cleaning air purification device

Info

Publication number: CN218846387U
Application number: CN202223358623.5U
Authority: CN
Inventors: 张嘉妮; 周文晓; 王卓华; 钱文川; 钱靖辉
Original assignee: Suzhou Hengdian Energy Technology Co ltd
Current assignee: Suzhou Hengdian Energy Technology Co ltd
Priority date: 2022-12-13
Filing date: 2022-12-13
Publication date: 2023-04-11
Anticipated expiration: 2032-12-13

Abstract

The utility model provides a self-cleaning air purification device, includes the box, and air outlet fan, air inlet fan, characteristics are established to its case chamber top: a washing filter screen, a primary-effect filter screen, a medium-effect filter screen, a high-efficiency filter screen, an ultraviolet lamp and a negative ion generator are sequentially arranged between the air outlet fan and the air inlet fan in the cavity; a water supplementing device and a water discharging device are arranged at positions, corresponding to the washing filter screen, on two sides of the box body, the water supplementing device comprises a water supplementing pump and a water supplementing box, and the water supplementing pump is provided with a water supplementing pump water suction pipe and a water supplementing pump water discharging pipe; the drainage device comprises a drainage water pump and a drainage box, the drainage water pump is provided with a drainage water pump outlet and a drainage water pump water suction pipe, the water outlet of the drainage pipe of the water replenishing water pump is positioned at the position close to the upper end face of the washing filter screen, and the water suction port of the drainage water pump water suction pipe is positioned at the position close to the lower end face of the washing filter screen. The advantages are that: the purification method has the advantages of higher purification effect, simple operation and environmental protection, and can delay the saturation state of the adsorption material, reduce the replacement times of the adsorption material and reduce secondary pollution.

Description

Self-cleaning air purification device

Technical Field

The utility model belongs to the technical field of air purification equipment, concretely relates to automatically cleaning air purification device.

Background

As is well known, people live in rooms with serious air pollution for a long time, the indoor environment is often a relatively closed space, the use of many articles for daily use, chemicals and other things can cause the concentration of indoor pollutants to gradually increase, and after the articles for daily use act on the human body for a long time, certain harm can be caused to the central nervous system, the respiratory system and the immune system of the human body, so that the autoimmune reduction and the generation of related diseases are caused.

With the development of science and technology, the quality of life of people is continuously improved, and air purifiers are gradually popularized in the life of people. The use of the air purifier not only improves the life quality of people, but also brings fresh air to people, and the fresh air can promote the blood circulation of human health. Air purifier's structure and principle are all comparatively simple, the universal draught fan that adopts, multilayer filter screen and active carbon complex structure, wherein adjust the filter effect through using the filter screen of different mesh sizes, and the filter screen that is in the first layer often becomes dirty very easily, with greatly reduced filter effect when the mesh of filter screen is blockked up by the dust, the consumer lacks the cleaning experience to the filter screen again, the washing operation is too troublesome, use the air gun cleanness to make the mesh destroyed and then can't reach the filter effect of ideal. Air purifier in the existing market, because there is the adsorption saturation state in the adsorption material on the filter screen, and the filter screen is saturated easily, and the filter screen needs often to be changed, has increased the use maintenance cost in later stage. Simultaneously, the filter screen is in the in-process that changes pollutant such as some particle impurity can fall into air purifier's inside, influences the use of equipment.

In view of the above circumstances, there is a need to design a self-cleaning air purification device with compact structure, low cost, and good purification effect, which can effectively improve the service life of the primary filter screen, the intermediate filter screen, and the high-efficiency filter screen. The applicant has therefore made an advantageous design, in the context of which the solution to be described below is made.

SUMMERY OF THE UTILITY MODEL

The task of the utility model is to provide a convenient operation, automatically cleaning air purification device that purification efficiency is high, help improving the automatically cleaning structure of filter screen and make primary filter screen, well effect filter screen and high efficiency filter screen filter most particle pollutant earlier before the effect to can effectively postpone the saturation state of adsorption material, reduce the change number of times of filter screen, be favorable to practicing thrift the cost of product maintenance, reduce secondary pollution and promote the filter effect.

The task of the utility model is accomplished in this way, a self-cleaning air purification device, which comprises a box body, wherein a box cavity is formed in the box body, the top of the box cavity is provided with at least one air outlet fan, the bottom of the box cavity is provided with at least one air inlet fan, and the box cavity is provided with a washing filter screen, a primary filter screen, a middle filter screen, a high-efficiency filter screen, an ultraviolet lamp and an anion generator from bottom to top in sequence at the position between the air outlet fan and the air inlet fan; the water replenishing device comprises a water replenishing water pump fixed on the outer side wall of the box body and a water replenishing box fixed on the outer side wall of the box body and used for covering the water replenishing water pump, the water replenishing water pump is driven by a water replenishing water pump motor, and a water replenishing water pump water suction pipe extending downwards into the bottom of the water replenishing box and a water replenishing water pump water discharge pipe penetrating through the side wall of the box body and inserted into the water washing filter screen are formed on the water replenishing water pump; the drainage device comprises a drainage pump fixed on the other side wall of the box body and a drainage box detachably fixed on the other side wall of the box body and covering the drainage pump, the drainage pump is driven by a drainage pump motor, a drainage pump outlet and a drainage pump water suction pipe penetrating through the side wall of the box body and inserted into the water washing filter screen are formed on the drainage pump, the water outlet of the drainage pipe of the water replenishing pump is positioned at a position close to the upper end face of the water washing filter screen, and the water suction port of the drainage pump water suction pipe is positioned at a position close to the lower end face of the water washing filter screen.

The utility model discloses a specific embodiment, from up having set gradually a washing filter screen layer board, an just imitate filter screen layer board, a well-being filter screen layer board, a high-efficient filter screen layer board, a baffle, an ultraviolet lamp support and an anion generator support down in proper order the interval respectively on the wall of the left and right sides of the case intracavity of box, on the wall of the left and right sides washing filter screen layer board, just imitate filter screen layer board, well-being filter screen layer board, high-efficient filter screen layer board, baffle, ultraviolet lamp support and anion generator support position the same and symmetry each other sets up, the washing filter screen shelve on a pair of washing filter screen layer board and adopt the drawer type setting to set up the position department between first-being effective filter screen layer board and well-being effective filter screen layer board on a pair of just imitating filter screen layer board, well-being effective shelve on a pair of well-being effective filter screen layer board and adopting the drawer type setting to set up the position department between well-being effective filter screen layer board and high-being effective filter screen layer board, high-being effective shelve on a pair of filter screen layer board and adopting drawer type setting the position department between the high-being effective filter screen layer board and the anion generator support both ends of ultraviolet lamp to fix respectively a pair of lower side anion generator support.

In another specific embodiment of the present invention, an air outlet fan fixing frame is installed above the box cavity of the box body, and the air outlet fans are respectively arranged on the air outlet fan fixing frame; an air guide barrier is arranged on the upper side wall of the box cavity of the box body corresponding to the air outlet fan, and a circle of air guide grooves which are respectively diverged towards the front direction, the back direction, the left direction and the right direction and inclined at an angle of 45 degrees with the air guide barrier body are arranged on the air guide barrier at intervals; an air inlet fan fixing frame is fixed below the box cavity of the box body, and the air inlet fans are respectively arranged on the air inlet fan fixing frame; a group of lower air inlet holes are formed in the lower side wall of the box cavity of the box body at positions corresponding to the air inlet fan; and a group of side air inlet holes are respectively formed in two side walls of the lower end of the box cavity of the box body.

In another specific embodiment of the present invention, the washing filter screen is composed of multiple washing filter layers, and the washing filter layer is one of a non-woven fabric or a sponge.

In another specific embodiment of the present invention, the primary filter net and the secondary filter net are made of one of polypropylene fiber, glass fiber, polyester non-woven fabric or melt-blown fabric; the high-efficiency filter screen is an active carbon filter screen.

The utility model discloses a still have a specific embodiment, the aperture of just imitating the filter screen be greater than the aperture of well effect filter screen, just imitate the filter screen and be used for filtering the granule more than 5 microns, well effect filter screen for reaching HEPA high efficiency filter's check standard's filter screen and be used for filtering the granule more than 0.3 micron.

In still another specific embodiment of the present invention, the front side of the box body is detachably provided with a box door, the box door is provided with a control panel, and the control panel is used for controlling connection with the air outlet fan, the air inlet fan, the ultraviolet lamp, the anion generator, the water replenishing device and the water draining device.

In a more specific embodiment of the present invention, the bottom of the case is provided with a set of universal wheels.

In yet another specific embodiment of the present invention, a cleaning agent is added into the water replenishing box.

In a still more specific embodiment of the present invention, a flow guiding plate is further disposed above the washing filtering net, and a set of flow guiding holes penetrating the thickness direction of the flow guiding plate are uniformly distributed on the flow guiding plate at intervals.

The utility model adopts the above structure after, beneficial effect who has: firstly, because the structure that the washing filter screen is used before the primary filter screen, the intermediate filter screen and the high-efficiency filter screen and is self-cleaned through the water replenishing device and the water discharging device is adopted, the washing filter screen can filter most particle pollutants in advance, the service life of the primary filter screen, the intermediate filter screen and the high-efficiency filter screen is effectively prolonged, and the primary filter screen, the intermediate filter screen and the high-efficiency filter screen are not blocked by the particle pollutants to influence the filtering effect; secondly, the air after the three-layer filter screen filters upwards again through ultraviolet lamp, utilize ultraviolet lamp to decompose harmful gas, and the gas that rises gets rid of harmful gas through anion generator again, last gas is blown out from the air guide groove through the fan of giving vent to anger, this air purification device has higher purifying effect, only need for moisturizing box add water and sanitizer on time and handle the sewage of arranging the water box can, easy operation and environmental protection, the saturation state of adsorption material can be postponed simultaneously, reduce the change number of times of adsorption material, reduce secondary pollution.

Drawings

Fig. 1 is a sectional view of a planar structure according to an embodiment of the present invention.

Fig. 2 is a schematic front view of the box body of the present invention.

In the figure: 1. the air purifier comprises a box body, 10 side air inlet holes, 11 box cavities, 111 washing filter screen supporting plates, 112 primary filter screen supporting plates, 113 medium-efficiency filter screen supporting plates, 114 high-efficiency filter screen supporting plates, 115 partition plates, 116 ultraviolet lamp supports, 117 negative ion generator supports, 118 air guide barriers, 1181 air guide grooves, 119 lower air inlet holes, 12 universal wheels, 13 air inlet fan supports, 131 air inlet fans, 14 air outlet fan supports, 141 air outlet fans, 15 box doors, 151 control panels, and a water inlet pipe, a water outlet pipe and a water outlet pipe; 2. washing a filter screen, 21 flow guide plates, 211 flow guide holes; 3. a primary filter screen; 4. a middle-effect filter screen; 5. a high-efficiency filter screen; 6. an ultraviolet lamp; 7. a negative ion generator; 8. the water replenishing device comprises a water replenishing device 81, a water replenishing pump 811, a water replenishing pump motor 812, a water replenishing pump suction pipe 813, a water replenishing pump drain pipe 82 and a water replenishing box; 9. the water discharging device comprises a water discharging device, 91, a water discharging pump, 911, a water discharging pump motor, 912, a water discharging pump water discharging port, 913, a water discharging pump water absorbing pipe and 92, a water discharging box.

Detailed Description

The following detailed description of the embodiments of the present invention is provided in conjunction with the accompanying drawings, but the description of the embodiments is not intended to limit the technical solutions, and any changes made in the form of the present invention rather than the essential changes should be considered as the protection scope of the present invention.

In the following description, all the concepts related to the directions or orientations of up, down, left, right, front and rear are based on the position of fig. 1, and thus should not be interpreted as limiting the technical solution provided by the present invention.

Referring to fig. 1, the present invention relates to a self-cleaning air purification device, including a box body 1, a box cavity 11 is formed in the box body 1, at least one air outlet fan 141 is disposed at the top of the box cavity 11, at least one air inlet fan 131 is disposed at the bottom of the box cavity 11, and in this embodiment, the number of the air outlet fan 141 and the number of the air inlet fan 131 are preferably two. A washing filter screen 2, a primary filter screen 3, a middle filter screen 4, a high-efficiency filter screen 5, an ultraviolet lamp 6 and an anion generator 7 are sequentially arranged in the box cavity 11 from bottom to top at the position between the air outlet fan 141 and the air inlet fan 131; a water replenishing device 8 and a water discharging device 9 are respectively arranged at positions corresponding to the washing filter screen 2 on two sides of the box body 1, the water replenishing device 8 comprises a water replenishing water pump 81 fixed on the outer side wall of the box body 1 and a water replenishing box 82 fixed on the outer side wall of the box body 1 and covering the water replenishing water pump 81, the water replenishing water pump 81 is driven by a water replenishing water pump motor 811, and a water replenishing water pump water suction pipe 812 extending downwards into the box bottom of the water replenishing box 82 and a water replenishing water pump water discharging pipe 813 penetrating through the side wall of the box body 1 and inserted into the washing filter screen 2 are formed on the water replenishing water pump 81; the aforesaid drainage device 9 includes a drainage pump 91 fixed on another lateral wall of the box 1 and a drainage box 92 which can be dismantled and fixed on another lateral wall of the box 1 and cover the drainage pump 91, the aforesaid drainage pump 91 is driven by a drainage pump motor 911, the last drainage pump 912 and a drainage pump water suction pipe 913 that passes through the lateral wall of the box 1 and inserts into the washing filter screen 2 are formed on the drainage pump 91, the delivery port of the aforesaid moisturizing pump drain pipe 813 is located near the position of the upper end face of the washing filter screen 2, the water suction port of the aforesaid drainage pump water suction pipe 913 is located near the position of the lower end face of the washing filter screen 2. The water washing filter screen 2 is composed of a plurality of water washing filter layers, the water washing filter layers are one of non-woven fabrics and sponges, and in the embodiment, the water washing filter layers are preferably sponges. The water replenishing box 82 is added with a cleaning agent and has the effects of decontamination, freezing prevention, static resistance and corrosion prevention. A guide plate 21 is further disposed above the water washing filter screen 2, and a group of guide holes 211 penetrating the thickness direction of the guide plate 21 are uniformly distributed on the guide plate 21 at intervals.

In this embodiment, a washing screen supporting plate 111, an initial-effect screen supporting plate 112, an intermediate-effect screen supporting plate 113, an efficient screen supporting plate 114, a partition 115, an ultraviolet lamp bracket 116 and an anion generator bracket 117 are respectively arranged on the left and right side walls in the box cavity 11 of the box body 1 at intervals from bottom to top, the washing screen supporting plate 111, the initial-effect screen supporting plate 112, the intermediate-effect screen supporting plate 113, the efficient screen supporting plate 114, the partition 115, the ultraviolet lamp bracket 116 and the anion generator bracket 117 on the left and right side walls are arranged symmetrically with each other, the washing screen 2 is arranged on the pair of washing screen supporting plates 111 and arranged at a position between the washing screen supporting plate 111 and the initial-effect screen supporting plate 112 in a drawer type, the initial-effect screen 3 is arranged on the pair of initial-effect screen supporting plates 112 and arranged at a position between the initial-effect screen supporting plate 112 and the intermediate-effect screen supporting plate 113 in a drawer type, the intermediate-effect screen 4 is arranged on the pair of intermediate-effect screen supporting plates 113 and arranged at a position between the pair of efficient screen supporting plates 114, the efficient screen supporting plate 5 is arranged at a position between the pair of the efficient screen supporting plate 114 and the ultraviolet lamp generator bracket 116, and the anion generator bracket 116 is arranged at a position below the lower end of the pair of the ultraviolet lamp bracket 114.

Further, an outlet fan fixing frame 14 is installed above the box cavity 11 of the box body 1, and the outlet fans 141 are respectively arranged on the outlet fan fixing frame 14; an air guide fence 118 is arranged on the upper side wall of the box cavity 11 of the box body 1 at a position corresponding to the air outlet fan 141, and a circle of air guide grooves 1181 which are respectively divergent in the forward direction, the backward direction, the left direction and the right direction and inclined at an angle of 45 degrees with the air guide fence body 118 are arranged on the air guide fence 118 at intervals; an air inlet fan fixing frame 13 is fixed below the box cavity 11 of the box body 1, and the air inlet fans 131 are respectively arranged on the air inlet fan fixing frame 13; a group of lower air inlet holes 119 are formed on the lower side wall of the box cavity 11 of the box body 1 at positions corresponding to the air inlet fan 131; two side walls at the lower end of the box cavity 11 of the box body 1 are respectively provided with a group of side air inlet holes 10.

Further, the primary filter net 3 and the intermediate filter net 4 are made of one of polypropylene fibers, glass fibers, polyester non-woven fabrics or melt-blown fabrics, in this embodiment, the primary filter net 3 is preferably made of polypropylene fibers, and the intermediate filter net 4 is preferably made of melt-blown fabrics. The aperture of the primary filter screen 3 is larger than that of the intermediate filter screen 4, the primary filter screen 3 is used for filtering particles above 5 micrometers, the intermediate filter screen 4 is a filter screen meeting the inspection standard of the HEPA high-efficiency filter and used for filtering particles above 0.3 micrometers, and the intermediate filter screen can also be directly purchased from the market, for example, the HEPA filter screen produced by the nantong henjia environmental protection technology limited company. The efficient filter screen 5 is an activated carbon filter screen and is mainly used for removing peculiar smell.

Referring to fig. 2 in conjunction with fig. 1, a box door 15 is detachably disposed on the front side of the box body 1, a control panel 151 is disposed on the box door 15, and the control panel 151 is in control connection with the air outlet fan 141, the air inlet fan 131, the ultraviolet lamp 6, the anion generator 7, the water replenishing device 8 and the water draining device 9. A set of universal wheels 12 is installed at the bottom of the box 1, and the control panel 151 is respectively connected with a water replenishing pump motor 811 and a water draining pump motor 911 in the water replenishing device 8 and the water draining device 9 in a control manner. Here, the control panel 151 controls the water supplement pump motor 811 and the drain pump motor 911 to make the water supplement device 8 and the drain device 9 perform corresponding operations, which follows the prior art, and thus detailed descriptions are omitted.

Referring to fig. 1 and fig. 2, the purification and self-cleaning processes of the present invention are described: the air outlet fan 141 and the air inlet fan 131 are controlled to work through the control panel 151, the air inlet fan 131 sucks air into the lower end of the box cavity 11 through the lower air inlet hole 119 and the side air inlet hole 10 and sends the air upwards to the water washing filter screen 2, the water washing filter screen 2 filters most of particulate pollutants (particles visible to naked eyes) in the air, then the air upwards passes through the air guide hole 211 and is filtered by the primary filter screen 3, the intermediate filter screen 4 and the high-efficiency filter screen 5 in sequence, then the air is disinfected by ultraviolet rays of the ultraviolet lamp 6 and mixed with ions generated by the negative ion generator 7, and finally the air is sent out of the box body 1 through the air guide fence 118 by the air outlet fan 141, and the air is blown by the air guide groove 1181 towards the directions of 45 degrees upwards in the forward direction, the backward direction, the left direction and the right direction respectively to enable the purified air to be distributed around the box body 1, so that the effect of purifying the surrounding environment is achieved; when not needing air purification, through the work of aforementioned control panel 151 control moisturizing water pump motor 811 and drainage water pump motor 911, aforementioned moisturizing water pump 81 absorbs water the cleaner suction of pipe 812 in with moisturizing box 82 through the moisturizing water pump and leads to washing filter screen 2 through moisturizing water pump drain pipe 813, the cleaner disperses gradually at washing filter screen 2, thereby cleaning performance has been played to washing filter screen 2, aforementioned drainage water pump 91 absorbs water the pipe 913 through the drainage water pump and will accomplish the cleaning task and be located the sewage of washing filter screen 2 lower part and absorb, sewage gets into drainage box 92 from drainage water pump outlet 912, thereby accomplish whole automatically cleaning process. When the sewage in the drain box 92 reaches a certain level, the drain box is detached from the tank 1 and disposed of in time. Above-mentioned air purification device easy operation and laborsaving has effectively prolonged the time of the use of just imitating filter screen, well-being filter screen and high-efficient filter screen, and the maintenance cost is low, has postponed the saturated state of adsorbing material, has reduced the change number of times of adsorbing material, reduces secondary pollution, and purification efficiency height and effectual.

Claims

1. The utility model provides a self-cleaning air purification device, includes a box (1), constitutes in this box (1) to have a case chamber (11), and aforementioned case chamber (11) top is provided with at least one fan (141) of giving vent to anger, and aforementioned case chamber (11) bottom is provided with at least one inlet fan (131), its characterized in that: a washing filter screen (2), a primary filter screen (3), a medium-efficiency filter screen (4), a high-efficiency filter screen (5), an ultraviolet lamp (6) and a negative ion generator (7) are sequentially arranged in the box cavity (11) from bottom to top at the position between the air outlet fan (141) and the air inlet fan (131); the water replenishing device comprises a water replenishing device (8) and a water draining device (9) which are respectively arranged at positions corresponding to the washing filter screen (2) on two sides of the box body (1), wherein the water replenishing device (8) comprises a water replenishing pump (81) fixed on the outer side wall of the box body (1) and a water replenishing box (82) fixed on the outer side wall of the box body (1) and used for covering the water replenishing pump (81), the water replenishing pump (81) is driven by a water replenishing pump motor (811), and a water replenishing pump water absorbing pipe (812) extending downwards into the box bottom of the water replenishing box (82) and a water replenishing pump water draining pipe (813) penetrating through the side wall of the box body (1) and inserted into the washing filter screen (2) are formed on the water replenishing pump (81); drainage device (9) including one fix drainage water pump (91) on box (1) another lateral wall and one can dismantle and fix on box (1) another lateral wall and with drainage water pump (91) drainage box (92) of cover, drainage water pump (91) drive through a drainage water pump motor (911), constitute on this drainage water pump (91) and have a drainage water pump outlet (912) and one pass box (1) lateral wall and insert drainage water pump suction pipe (913) in washing filter screen (2), the delivery port of moisturizing water pump drain pipe (813) be located the position department that is close to washing filter screen (2) up end, drainage water pump suction pipe (913) the water sucking mouth be located the position department that is close to washing filter screen (2) down end face.

2. The self-cleaning air cleaning device according to claim 1, wherein a water-washing screen supporting plate (111), a primary-effect screen supporting plate (112), a middle-effect screen supporting plate (113), a high-efficiency screen supporting plate (114), a partition plate (115), an ultraviolet lamp bracket (116) and an anion generator bracket (117) are respectively arranged on the left and right side walls in the box cavity (11) of the box body (1) from bottom to top at intervals, the water-washing screen supporting plate (111), the primary-effect screen supporting plate (112), the middle-effect screen supporting plate (113), the high-efficiency screen supporting plate (114), the partition plate (115), the ultraviolet lamp bracket (116) and the anion generator bracket (117) on the left and right side walls are in the same position and are arranged symmetrically with each other, the water-washing screen (2) is placed on a pair of water-washing screen supporting plates (111) and is arranged between the water-washing screen supporting plate (111) and the primary-effect screen supporting plate (112) in a drawer type, the primary-effect screen (3) is placed on a pair of the primary-effect screen supporting plates (112) and is placed between the middle-effect screen supporting plates (113) and is placed on a pair of the middle-effect screen supporting plates (113), the high-efficiency filter screen (5) is placed on the pair of high-efficiency filter screen supporting plates (114) and arranged between the high-efficiency filter screen supporting plates (114) and the partition plates (115) in a drawer mode, two ends of the ultraviolet lamp (6) are fixed below the pair of ultraviolet lamp supports (116) respectively, and two ends of the negative ion generator (7) are fixed below the pair of negative ion generator supports (117) respectively.

3. The self-cleaning air purification device according to claim 1, wherein an outlet fan fixing frame (14) is installed above the box cavity (11) of the box body (1), and the outlet fans (141) are respectively arranged on the outlet fan fixing frame (14); an air guide fence (118) is arranged on the upper side wall of the box cavity (11) of the box body (1) at a position corresponding to the air outlet fan (141), and a circle of air guide grooves (1181) which are respectively divergent in the forward, backward, left and right directions and inclined at an angle of 45 degrees with the air guide fence (118) body are arranged on the air guide fence (118) at intervals; an air inlet fan fixing frame (13) is fixed below the box cavity (11) of the box body (1), and the air inlet fans (131) are respectively arranged on the air inlet fan fixing frame (13); a group of lower air inlet holes (119) are formed in the lower side wall of the box cavity (11) of the box body (1) at positions corresponding to the air inlet fan (131); and a group of side air inlet holes (10) are respectively formed in two side walls of the lower end of the box cavity (11) of the box body (1).

4. A self-cleaning air cleaning device as claimed in claim 1, characterized in that said water cleaning filter (2) is composed of multiple layers of water cleaning filter layers, said water cleaning filter layers being one of non-woven fabrics or sponges.

5. The self-cleaning air purification device according to claim 1, wherein the primary filter (3) and the intermediate filter (4) are made of one of polypropylene fiber, glass fiber, polyester non-woven fabric or melt-blown fabric; the high-efficiency filter screen (5) is an activated carbon filter screen.

6. A self-cleaning air cleaning device according to claim 5, characterized in that the aperture of said primary filter (3) is larger than the aperture of said intermediate filter (4), said primary filter (3) is used to filter particles above 5 microns, said intermediate filter (4) is used to filter particles above 0.3 microns which meets the test standard of HEPA high efficiency filter.

7. A self-cleaning air cleaning device as claimed in claim 1, wherein a door (15) is detachably disposed on the front side of the housing (1), a control panel (151) is disposed on the door (15), and the control panel (151) is used for controlling connection with the air outlet fan (141), the air inlet fan (131), the ultraviolet lamp (6), the anion generator (7), the water replenishing device (8) and the water draining device (9).

8. A self-cleaning air cleaning device as claimed in claim 1, characterized in that a set of universal wheels (12) is mounted on the bottom of said housing (1).

9. The self-cleaning air purification device as claimed in claim 1, wherein a detergent is added into the refill box (82).

10. A self-cleaning air cleaning device as claimed in claim 1, wherein a deflector (21) is further disposed above the water washing screen (2), and a plurality of deflector holes (211) penetrating the deflector (21) in the thickness direction are uniformly distributed on the deflector (21).