The invention relates to a dismountable filter bag frame, which comprises a top ring, a bottom cap, and a plurality of vertical reinforcement bars disposed between the top ring and the bottom cap, wherein two ends of the vertical reinforcement bars are respectively connected to the top ring and the bottom cap in a dismountable manner; the filter bag frame further comprises a plurality of supports used for laterally supporting the vertical reinforcement bars, wherein each of the supports comprises a support sleeve and a locking member disposed on the support sleeve, the support sleeve is evenly provided with a plurality of through holes along a circumferential direction which correspond to the vertical reinforcement bars one by one and can enable the vertical reinforcement bars to pass through, and the locking member is used for locking sliding of the support sleeve on the plurality of vertical reinforcement bars. The filter bag frame of the structure can be assembled and used conveniently, so as to save storage space, facilitate transport, reduce damage during a transporting process, and lower transporting cost.