Bag-type dust collector

The utility model discloses a bag-type dust collector, which relates to the technical field of bag-type dust collection, and comprises a box body, a dust collecting bag arranged in the box body, an air inlet arranged on one side of the box body, an air outlet arranged on the other side of the box body, an ash bucket, a dust collecting box and a first heating mechanism, the ash bucket is arranged at the lower end of the box body, and the dust collecting box is detachably arranged at the lower end of the ash bucket. A first heating mechanism is arranged on the inner circumferential wall of the upper end of the ash hopper, and the longitudinal section of the ash hopper is of an isosceles trapezoid structure with the wide upper end and the narrow lower end. According to the dust collection device, the dust collection box is arranged at the lower end of the dust hopper, so that dust in the dust hopper can directly enter the dust collection box for centralized storage, and the dust collection efficiency can be impr