The utility model discloses a pulverizer mainly comprising a feeding device, an airflow pulverization device, an airflow classification device, a cyclone collector, a dust collector and a draught fan which are connected in sequence, wherein the airflow pulverization device mainly comprises an airflow pulverization cavity and an auxiliary airflow cavity; and the feeding device is provided with a suction system. The pulverizer has the advantages of increasing the efficiency and the yield, reducing the cost, uniformly pulverizing materials and regulating the particle size of the discharged material. Meanwhile, the pulverizer is simple in structure, low in energy consumption and capable of improving the classification effect and the quality of a product, relieving the labor intensity and reducing the cost.