Reinforcement bar straightening machine capable of preventing dust pollution

A reinforcement bar straightening machine capable of preventing dust pollution comprises a pulse-jet bag dust collector, a middle connecting disk, an unloading gate, a rack and a fan, wherein a pulsation device is arranged on the outlet of the pulse-jet bag dust collector; the pulse-jet bag dust collector and the rack are fixedly connected into a whole; the pulse-jet bag dust collector is connected with an iron powder outlet of the reinforcement bar straightening machine by the middle connecting disk; the lower part of a dust collection hopper of the pulse-jet bag dust collector is fixedly connected with the unloading gate. Dust and iron powder which are produced when the reinforcement bar straightening machine is used for straightening reinforcement bars are collected, air is purified, the environment pollution is reduced, the physical and psychological health of an operation worker is protected, a movable supporting frame is additionally arranged in a framework of a filter bag of the pulse-jet bag dust collector, when the filter bag is cleaned by pulsation airflow, movable supporting rods can synchronously move with the filter bag under the effect of pulsation wind pressure, the action range of the filter bag is increased, the auxiliary mechanical beating and self-cleaning effects are realized, the accumulated dust cleaning efficiency of the filter bag is remarkably improved, and energy-saving and cost-reducing effects are facilitated.