The main components of mobile high negative pressure dust collector are mobile trolley frame, turbine fan, dust bucket, high efficiency filter cylinder filter, hose and various shapes of different nozzle. The turbine fan runs at a high speed after being energized, forming an instant vacuum inside the dust collector and making the internal air pressure much lower than the external air pressure. Under the action of this air pressure difference, the dust and dirt enter the vacuum cleaner barrel with the air flow, and then pass through the filter of the high efficiency filter cylinder, the dirt stays in the dust collector, and the purified air escapes into the room again through the turbine fan. It can cool the motor and purify the air. The equipment is mainly used to clean up all kinds of metal chips and dust, glass fiber products in the manufacturing of hardened surface grinding dust and residue, biological pharmaceutical production workshop dust removal and purification, microelectronics industry production workshop dust removal, purification and shearing materials recovery.