The dust collector consists of an air filter bag chamber and a dust hopper. By the suction of air exhaust blower, the dust laden air enters into the filter bags and passes to air bag chamber through air filter bags. The dust particles are trapped into the filter bags and dust free air is conveyed to the exhaust chimney through blower. In the filter bag chamber, the filter bags are hanged on an auto shaking hanger. Thus the filter bags are cleaned, releasing trapped dust by auto shaking arrangement coupled with a geared motor. The dust particles fall away from the filter bags and into the dust hopper for removal.