Protein filter

The utility model discloses a protein filter. The protein filter comprises a filtering body, a foam generating assembly and a filtering assembly. The interior of the filtering body is of a cavity structure. The cavity structure comprises a foam generating space and a filtering space adjacent to the foam generating space. A water pump of the foam generating assembly is arranged in the foam generating space of the filtering body. The lower end of the water pump penetrates through the filtering body to extend downwards, the water pump drives a needle brush to rotate to generate foam, and impurities in water are driven by the foam to move upwards. The filtering assembly is arranged in the filtering space of the filtering body. The foam with impurities enters the filtering assembly, is filtered by the filtering assembly and is guided out through a water drainage groove formed in the side wall of the filtering body. The protein filter is simple in structure and compact and reasonable in design, has the dual filtering and foam generating functions and is thorough in filtering.