Roller type bauxite daub dough pricking device

The invention discloses a roller type bauxite daub dough pricking device. The roller type bauxite daub dough pricking device comprises a feeding conveying belt, a roller supporting frame, a rotary shaft, a roller, a driving motor, driving cylinders, a driving pump system and a receiving device. The feeding conveying belt is horizontally arranged and used for conveying to-be-sorted bauxite. Multiple rows of driving cylinders are arranged along the circumferential direction of the roller. Each row of driving cylinders are arranged along the longitudinal direction of the roller. Each driving cylinder comprises a cylinder barrel and a piston rod installed on the cylinder barrel. A needling portion is arranged at the end, exposed outside a cylinder barrel, of a corresponding piston rod and usedfor pricking into bauxite daub dough conveyed on the feeding conveying belt when the piston rod stretches out and making daub dough drop onto the receiving device after daub dough is squeezed by thecylinder barrel when the p