Tail gas treatment system for asphalt mixing plant

An asphalt mixing plant tail gas treatment system comprises a regeneration drying roller, a regeneration gravity dust collection chamber, a primary drying roller, a primary bag-type dust collector and a powder spraying device. The native bag-type dust collector comprises a box body, an air inducing pipe and an exhaust box, and the box body is connected with the native drying roller and receives native tail gas generated by the native drying roller; one end of the air inducing pipe is connected with the regeneration gravity dust collector, the other end of the air inducing pipe is connected with the box body, and regenerated tail gas treated by the regeneration gravity dust collector is introduced into the box body; one end of the exhaust box is connected with the box body, and the other end is connected with the regeneration drying roller; the powder spraying device is connected with the air inducing pipe and is used for spraying powder into the air inducing pipe to be mixed with the treated regenerated tail