The invention relates to an efficient bag type dust collector for industrial waste gas purification treatment. The dust remover comprises a base, a controller, a shell, an air inlet pipe, an air outlet pipe, a pulse valve, a dustproof mechanism and a plurality of supporting legs. A flow guide mechanism, two connecting pipes and two filter bags are arranged in the shell. The dustproof mechanism comprises a water tank, a water pump, a water conveying pipe, a water spraying pipe, a frame, a return pipe, a filter cloth and a plurality of nozzles. The flow guide mechanism comprises a flow guide plate, a sliding rail and a lifting assembly. According to the efficient bag type dust collector, the filter cloth can be kept in a moist state through the dustproof mechanism, so that dust adsorption isfacilitated, and filter bag blockage caused by dust flying is prevented; moreover, the flow guide plate is driven to ascend and descend through the flow guide mechanism, dust suspended in the shell is close to wet filter cloth, dust adsorbed to the surface of a filter bag is reduced, air circulation is kept; and therefore, the dust removal efficiency and the practicability of equipment are improved.