The centrifugal sifter includes a housing with inlets and outlets for sifting air, sifting material, fine material and coarse material. Several sifting rotors (2-4) are mounted in the rectangular housing (1) and are each connected to one or two separate sifting air-fines outlets (10-12). The sifting rotors are set parallel to each other such that several rows of adjoining rotors can be set one above the other. Thus the rotors of one row can be laterally offset w.r.t. the rotors of the other row.
