The pulverizer integrates the functions of blade cutting, high-speed airflow impact and collision, and can simultaneously complete the micro-material sorting process. In the process of blade cutting and crushing, the rotor generates high-speed airflow, which rotates along with the cutting direction of the blade, and the materials are accelerated in the airflow, and the materials are subjected to double crushing at the same time by repeated impacts, thus accelerating the crushing rate of the materials.