This series of micro pulverizer is composed of main engine, auxiliary machine and electric control unit. It is compact in design and reasonable in structure. It has air separation type, no screen and no net. The machine is equipped with a grading mechanism, which can complete crushing and grading at one time. The negative pressure transportation makes the heat generated in the chamber continuously discharged during the grinding operation, so it is also suitable for the crushing of heat sensitive materials. This machine is suitable for a wide range of applications, the production process is continuous, and the discharge particle size is adjustable; it can process the crushing and grading of chemicals, food, medicine, cosmetics, dyes, resins, shells and other materials.