The invention discloses a powder cake superfine pulverizer, which comprises a pulverizing cylinder, a stirring sleeve and a fixed shaft. The left part of the top surface of the pulverizing cylinder is provided with a feeding port, and the right part of the bottom surface of the pulverizing cylinder is provided with a discharge port. , the stirring sleeve is rotatably connected to the middle part of the left and right end faces of the inner chamber of the crushing cylinder, the side wall of the stirring sleeve is rotatably inserted with stirring teeth, the stirring teeth are fixedly connected with a first bevel gear, and the side walls of the stirring teeth are installed There is a blade, the fixed shaft runs through the inner cavity of the stirring sleeve, and is fixedly welded to the middle of the left and right end faces of the inner cavity of the crushing tube respectively, and the second bevel gear is installed through the fixed shaft, and the second bevel gear is connected with the first bevel gear Mesh with each other, the top surface of the support plate is fixed with a stepper motor, and the stepper motor is fixedly connected with the left end surface of the stirring sleeve through a power shaft. The invention relates to a powder cake superfine pulverizer, which realizes three-dimensional stirring and pulverization synchronously, complete pulverization, and improves pulverization efficiency.