The utility model discloses a soybean seed
impurity separation device, include: equipment main part and adjusting part, the equipment main part is provided with the screening net in, the screening net inside is provided with manual screening mesh, adjusting part includes spacing baffle and is used for adjusting the push arc plate of screening mesh hole
diameter size, spacing baffle is installed in the screening mesh hole inside through push arc plate, the utility model discloses adjusting part is set up, adjusts the push plate, extruding push arc plate, drives spacing baffle to move to the center of screening mesh hole, can adjust the size of screening mesh hole
diameter, can according to the size of the size of screening mesh hole of soybean seed planting demand quick adjustment, to meet the different size of soybean seed screening separation demand, not only can reduce the time of replacing screening net, and then improve the work efficiency of soybean seed screening, but also can reduce the limitation of separation device use.