In a separating wheel for an air separator the radially outside ends of the separating wheel blades are tilted backwards in the direction of rotation of the separating wheel. In the area of the radially outside end of the separating wheel blades the front wall of the separating wheel blades which is viewed in the direction of rotation is tilted to the radial direction at a greater angle than the rear blade wall. Very good separating behavior is achieved by the dramatically inclined front wall of the separating wheel blades. The smaller tilt of the rear wall of the separating wheel blades with respect to the radial furthermore prevents the separated material from attaching to the rear wall of the separating wheel blades.
