Mine Dust Blower entirely by its own technical characteristics as determined by the unit placed separate dust blower dust, the configuration of the duct and the corresponding dust cover with dust collector connection, plug in the power, turn the fan button, dusty air from the dust source The dust cover, air hose, air inlet into the cabinet, because the sudden expansion of air flow, the flow rate suddenly decreases by a large grain powder under the action of its own weight in air separation from dust settling to Sheng ash drawer, the remaining dust Since the filter sieve, collision, hook, electrostatic and other effects, was stranded in the filter wall, clean air by the fan outlet. The crew purified air can be discharged directly indoor recycling, no ventilation heat (cold) losses. Since B type with pulse cleaning, the user must bring their own air supply. Dust Blower abandoned only use a filter to capture dust to reach the dust and gas separation, air purification technology roadmap, but the use of aerodynamics has potential separation of airborne dust ability to capture dust separation, namely the impeller back airflow. Advance of the spiral (i.e., flow along the inner wall of the body shell as spiral movement) a hollow cone-shaped, the central part of the boundary air can flow, very beneficial to the strong centrifugal separation of airborne dust. According to this flow aerodynamics, development costs series dust blower, dust removal function entirely by its own technical characteristics are determined, no additional complex dust filter.