The invention relates to agricultural engineering and can be used in agriculture for the treatment of sunflower seeds from impurities. Pneumatic separator sunflower seed comprises a receiving hopper with a feed roller plate, the guide installed at an angle to the horizontal during the movement of material, a chamber divider, excretory augers. The guide is corrugated with longitudinal "waves" in relation to the direction of movement of the feed material surface height "wave" is not less than half the width of the seed, wherein it is installed with the possibility of being replaced by another with a height of "waves" corresponding to the size of the seeds of another sunflower varieties . 2 FIG. 1 pr.
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