Seed treatment device

The invention relates to the field of seed processing, in particular to a seed treatment device. Comprising a surrounding barrel, a plurality of vertical frames and vertical plates corresponding to the vertical frames are arranged on the outer wall of the surrounding barrel, racks are slidably connected to each pair of vertical plates, at least two racks are arranged on a reciprocating plate, an air supply pipe is rotatably connected to the reciprocating plate, a communicating pipe is rotatably connected to the air supply pipe, and a screening plate provided with a plurality of screening holes is arranged on the communicating pipe. The outer edge of the screening plate is attached to the outer wall of the surrounding barrel, a plurality of extension pipes are fixedly connected to the air supply pipe, each extension pipe is provided with an air outlet frame, a secondary screening plate fixedly connected with the extension pipes is rotationally connected to the communicating pipe, and a plurality of secondary s