Framework of dustproof cloth bag with adjustable length

The utility model relates to the technical field of dustproof cloth bag frameworks, and discloses a length-adjustable dustproof cloth bag framework which comprises a bottom plate, eight outer rods are fixedly installed at the top of the bottom plate, inner cavities of the outer rods are movably connected with movable rods, and one ends of the movable rods penetrate out of the outer rods. Resistance increasing blocks located in inner cavities of the outer rods are fixedly connected to the bottoms of the left and right sides of the movable rods, the sides, away from the movable rods, of the resistance increasing blocks penetrate through the side walls of the inner cavities of the outer rods and are movably connected with the side walls of the inner cavities of the outer rods, outer rings are fixedly connected to the tops of the outer sides of the movable rods, and first inner rings are fixedly connected to the inner sides of the eight outer rods; a second inner ring is fixedly connected to the inner side of the