Combined type tooth roller

The utility model discloses a combined type tooth roller which comprises roller bodies arranged in pairs, a plurality of roller tooth rows which extend in the axial direction of the roller bodies and are distributed in the circumferential direction at intervals are fixedly connected to the outer circle faces of the roller bodies respectively, and the roller tooth rows are used for shearing and crushing large lumpiness materials into secondary lumpiness materials. Each roller tooth row comprises a plurality of roller teeth which extend in the axial direction of the roller body and are distributed at intervals, and the corresponding roller teeth on the roller bodies arranged in pairs are staggered with one another. The crushing roller is characterized in that a plurality of crushing blade groups which extend in the axial direction of the roller body and are distributed at intervals in the circumferential direction are respectively and fixedly connected between the adjacent roller tooth rows on the outer circle