Device for automatically cleaning filter element

The utility model relates to a device for automatically cleaning a filter element. Including a housing, a cavity is formed between the upper surface and the lower surface of the shell; a bearing plateand a filtering assembly are detachably arranged on the cavity; the bearing plate is mounted at the lower end of the cavity; a water leakage hole is formed in the bearing plate; the filtering assembly comprises a filtering cylinder, a fixing plate and a water inlet pipe; the fixed plate and the filter cartridge are detachably connected together; the water inlet pipe penetrates through the fixed plate and extends into the filter cartridge; a water outlet hole is formed in the wall of the filter cartridge, a sponge layer and a reverse osmosis membrane are sequentially arranged on the surface ofthe inner wall of the filter cartridge from top to bottom, a water storage cavity is formed between the outer wall of the filter cartridge and the inner wall of the shell, and the fixing plate is inthreaded connection with th