Plenum pulse bag type collector is a kind of de-dusting equipment with high efficiency. It combines many advantages of collectors including loculose anti-blow and pulse blow, and it has solved the disadvantages of deficiency of kinetic energy strength in loculose anti-blow and pulse blow de-dusting running in the same time, improved the applicability and de-dusting efficiency, extended life span of the bag. There's no venturi tube in the mouth of bag or blowing tube, that reduces working resistance and makes examining and repairing easy. Electromagnetic pulse valve is of these characters: be sensitive to control, high efficiency, long life span and so on. At present, this type dust collector has been used widely.