The invention relates to a high-efficiency pulsed dust collector. The high-efficiency pulsed dust collector comprises a support, the support is provided with an ash bucket, the upper end of the left side of the ash bucket is provided with a dust gas inlet, the bottom of the ash bucket is provided with an ash discharge device, the ash discharge device is connected to a dust outlet, the ash bucket is connected to a dedusting box, a support rack is arranged in the dedusting box, the support rack is provided with a tube sheet, the tube sheet is fixedly provided with a venturi tube, the venturi tube is connected to a filter bag frame, the filter bag frame is connected to a dedusting filter bag, the dedusting filter bag is detachable, the tube sheet is provided with an injection pipe, the left side of the injection pipe is connected to an electromagnetic pulse valve, the bottom of the electromagnetic pulse valve is provided with an air pocket, the outer side of the air pocket is provided with a fixed frame and the fixed frame is fixed to the dedusting box through a fixing rack. The high-efficiency pulsed dust collector is easy to repair, has high pressure resistance, high safety, stability, fastness, high working efficiency, long service life and good sealing performances and prevents leakage efficiency reduction caused by air leakage.