The rotary gate consists of a cylindrical housing. Sealing of one outlet each is carried out by an adjustable gate. By turning the drive shaft, the gate shifts from one material outlet to the other. A flexible sealing, which is pressed against the housing wall by a compression spring, provides a dust-tight sealing of the locked outlet. The drive can be pneumatic, motoric or manual and is flanged directly to the rotating shaft, resulting in the highest safety possible by omitting the rods. The drives are designed with sufficient reserves so that even under aggravated conditions a safe operation is ensured.