During the laser cutting process, a large amount of fine dust is generated. The particle diameter of the laser cutting dust is 2-10um. The inhalation of fine particle dust can cause great harm to the human body. The dust particle size of the laser cutting machine is extremely small, so the dust collector supporting the laser cutting machine requires a large air volume. The filtering accuracy of the laser cutting machine dust collector must be high, and the filtering area is large enough. It has the function of pulse dust cleaning. Cutting machine dust collector can work safely and effectively for a long time.