Bacteria separating and filtering device

The utility model provides a bacterium separating and filtering device which comprises a filtering box, a plurality of filtering frames are inserted in the filtering box in parallel, filtering net fixing frames are arranged in the filtering frames, filtering nets are fixedly arranged in the filtering net fixing frames, the mesh number of the multiple layers of filtering nets is sequentially increased from top to bottom, and flushing nozzles are arranged on the inner wall of the filtering box and located on the upper sides of the filtering frames. An ultraviolet disinfection lamp, a hot air port and a liquid inlet are arranged in the filter box. The bacteria separating and filtering device is simple and reasonable in structural design, the same bacteria are screened and intercepted according to different filter screens according to the principle that different bacteria are different in size, the purpose of separating and filtering the bacteria is achieved, the separated bacteria can be used for detection and r