The seeds wind screening machine make use of the seed suspended characteristics, with the help of seed gravity characteristics and wind speed to sort all kinds of seeds, raw material separation in the seeds into heavier good grain (good seed), light impurity and the dust three parts, easy to use screening equipment to heavier grains are in size. Seeds of wood structure for the wind separator, panel for organic glass, easy to observe the material in the movement of box in the separation test ; Feeding organization adopt electromagnetic vibration feeder, can according to the different nature of materials, adjust feeding speed and feed rate of the materials uniform, smoothly to the wind screening box. In wind screening cabinet panel has two air volume adjustment knob, used to adjust air suction, make the light impurity and dust to their respective abandoned settlement respectively product to achieve the optimal separation chamber in effect.