The invention relates to a rotary shaft roll crusher. The rotary shaft roll crusher comprises a rack, a feeding hopper, a receiving hopper and two extrusion rolls, wherein the receiving hopper is arranged below the feeding hopper, the two extrusion rolls can be embedded in the lower part of the feeding hopper relatively rotationally, two ends of each of the two extrusion rolls are connected with the rack, the two extrusion rolls are cylindrical, a plurality of extrusion strips are uniformly distributed on the surface of each extrusion roll, each extrusion strip is welded on the corresponding extrusion roll, and the mutually close extrusion strips are always kept meshed when the two extrusion rolls rotate; a rotary shaft which can rotate is arranged in the feeding hopper. Compared with theprior art, the rotary shaft roll crusher is simple in structure, low in cost and long in service life; the rotary shaft can rotate mineral aggregate in the feeding hopper, so that the mineral aggregate cannot block the feeding hopper, and the extrusion efficiency of the mineral aggregate can be guaranteed.