First, the structure of indoor dust aliases, indoor dust collector, interior hosts pulse dust collector, the wind pulse dust collector, pulse cleaning dust collector and so on. The main host for indoor dust, dust and other warehouse roof. Warehouse roof pulse dust precipitator it by low-power fan, barrel, filters, pulse controller, electromagnetic pulse valve, injection system components, cylinders arranged on the barrel body, and arranged a number of pulse valve and injection system. Second, the principle warehouse roof dust collector pulse dust in the filter through the induced draft fan pressure generated inside and outside, so that the outside of the particulate filter dust gang, led by the fan clean air, including dust, gas provided by one or two air intake, filter dust using pulse cleaning system type blow, due to pulse controller and solenoid valve. Intermittent injection for the filter to continuously remove dust attached to the filter surface. Third, the warehouse roof pulse dust precipitator used. 1, adjust the pulse jet control device, locking pulse interval and pulse width, and complete all the electromagnetic pulse valve drive pulse cycle and cycle interval to ensure dust running resistance within the set range, the timing of the implementation of the ESP dust cleared . 2, every 2-3 months will remove the filter, dry air in the filter dust collection blowback blowing, cleaning. To improve the ability to filter cartridge