Classification device convenient to clean

The utility model relates to the technical field of traditional Chinese medicine slicing processing, in particular to a grading device convenient to clean, which comprises a grading box which is a main grading part of the grading device, and a water tank is mounted in the center of the top of the grading box; the exhaust fans are installed on the two sides of the surface of the classification box, and one end of the air guide pipe communicates with the classification box; the draw-off pump is mounted at the top of the water tank; the water pumping pipe is connected to the output end of the draw-off pump and extends into the water tank; the water outlet pipe is connected to the water outlet end of the draw-off pump and extends to the top of the water tank. The device overcomes the defects in the prior art, the water tank, the exhaust fan and the draw-off pump are arranged, the exhaust fan operates to enable dust generated in the grading process to be sucked in through the exhaust pipe and the air guide pipe an