Civil engineering waste block classifying device

The invention discloses a civil engineering waste block classification device, and belongs to the technical field of civil engineering equipment, the civil engineering waste block classification device comprises a base, a crushing box and a mounting shell, the mounting shell is internally provided with a cleaning assembly, the cleaning assembly comprises a U-shaped supporting strip and a connecting pipe, and the U-shaped supporting strip is fixedly connected to one side of the inner wall of the mounting shell; a connecting pipe is fixedly connected to one side of the inner wall of the mounting shell, a cleaning brush is arranged in a U-shaped supporting strip, some silt on the outer surface of the filter barrel is washed off by a water source through a water pump and the U-shaped connecting pipe through a high-pressure spray head, and the dried silt is sprayed wet, so that the remaining silt in meshes of the filter barrel can be easily cleaned by the cleaning brush in the later period; the motor, the reductio