The invention discloses a soybean screening and dust removing device, and relates to the technical field of agricultural equipment. The soybean screening and dust removing device comprises a box body, a soybean screening device, a dust removing device and a soybean discharging device, the dust removing device and a rotary drum are installed in an inner cavity of the box body respectively, the rotary drum is located on the inner wall of the dust removing device, the soybean screening device is fixedly installed on the surface of the rotary drum, and soybean channel pipes are fixedly arranged on the two sides of the box body. According to the soybean screening and dust removing device, through cooperative use of the dust removing device and the soybean discharging device, when soybeans enter an arc-shaped plate box, the soybeans can circulate from the arc-shaped plate box to the most bottom part of the inner wall of the arc-shaped plate box under the action of filter cartridges, and due to the fact that certain distance are reserved between every two filter cartridges, the soybeans can be separated from the arc-shaped plate box when the inside of the arc-shaped plate box is blown in by wind emitted by the soybean discharging device, soybeans dust flowing through the arc-shaped plate box can be blown away, the dust and the soybeans are separated through an arc-shaped through groove, and the dust can be attached to the soybeans again is guaranteed.