Pre-cleaning device for oyster shell processing

The utility model belongs to the technical field of oyster shell processing, and relates to a pre-cleaning device for oyster shell processing, which comprises a cabinet body, a first belt and a second belt, the top surface of the inner wall of the cabinet body is rotatably connected with a plurality of rotating columns, the rotating columns are provided with cleaning brushes, one end of each rotating column is provided with a driven wheel, and the cabinet body is provided with a pump. One end of the connecting pipe is fixedly connected to the pump machine, the output end of the pump machine is fixedly connected with a spraying pipe, a fixing plate is installed on the top face of the cabinet body and located above the cleaning brush, a plurality of high-pressure sprayers are installed on the spraying pipe, a plurality of upper brushes are installed on the bottom face of the fixing plate, a feeding plate is installed on one side of the cabinet body, and a discharging plate is installed on the other side of the