Filtering device for air inlet end of dust remover

The utility model relates to the technical field of dust collectors, in particular to a filter device for an air inlet end of a dust collector, which comprises an air inlet barrel, a grid fence is fixedly arranged on one side of the air inlet barrel, a filter frame A, a filter frame B and a filter frame C are detachably arranged on the inner circumference of the air inlet barrel, and a filter sheet A, a filter sheet B and a filter sheet C are fixedly arranged on the inner circumference of the filter frame A, the filter frame B and the filter frame C respectively. The upper side of the filter frame A, the upper side of the filter frame B and the upper side of the filter frame C are each fixedly provided with a lifting block, the dust collector body assembly is arranged on one side of the grid fence, and by arranging the air inlet barrel, the grid fence, the filter frame A, the filter frame B, the filter frame C, the filter piece A, the filter piece B and the filter piece C, the dust collector has the multiple