This machine is a combined corn primary processing equipment, which consists of four systems: peeling system, crushing system, grading system and air net dust removal system. The technical difficulties such as traffic jam and slow impurity removal of corn processing machinery are solved, and a current display system is specially equipped to make the internal pressure and material peeling effect of the machine studio clear at a glance. In addition, the automatic discharging adjustment system is added, so that this machine is always in the best working state, and it is the most advanced corn miscellaneous grain processing equipment in China. When corn, rice, wheat, etc. They enter the peeling room from the hopper, and they travel to the outlet under the rotation of the pusher. In the peeling room, due to the gradual reduction of the volume of the working room and the influence of the resistance of the machine parts, the density between rice grains increases, the extrusion and matcha in the machine increase, the drum rotates and pushes constantly, and the friction and peeling between the machine parts make it impossible to clean the rice grains. The cleaned corn kernels enter the crushing system. Under the crushing and traction propulsion of the traction clutch crushing device, the materials travel in the crushing process, and enter the grading system for automatic separation to obtain corn flour, corn grits and corn grits. After cleaning and dust removal by the air net dust removal system, the products obtained are bright in color and excellent in taste.