Desulfurized gypsum pulverizer

The utility model relates to the technical field of crushers, and discloses a desulfurized gypsum crusher which comprises a bottom plate, stand columns are installed on the left side and the right side of the upper surface of the bottom plate, extrusion rings are connected to the middles of the outer surfaces of the stand columns in a sleeved mode, return springs are connected to the stand columns in a sleeved mode, and L-shaped plates are installed at the top ends of the stand columns. The middle of the inner wall of the L-shaped plate is rotationally connected with a rotating shaft, the rotating shaft is sleeved with a cam, and the stand column is slidably sleeved with a transmission plate. According to the desulfurized gypsum pulverizer, a first driving motor drives a transmission shaft located on the left side to rotate, so that the transmission shaft located on the left side drives a transmission shaft located on the right side to rotate through a connecting rod and a transmission gear, the transmission