Movable formwork device for ultra-wide pier

The utility model relates to the technical field of bridge construction, and provides a movable formwork device for an ultra-wide pier, which comprises four jack reaction frames, a plurality of C-shaped beams are welded on the side surfaces of the bottoms of the jack reaction frames, four hydraulic jacks are mounted in the jack reaction frames, and the C-shaped beams are welded on the side surfaces of the bottoms of the jack reaction frames. The jack reaction frame is a stress point of the hydraulic jack on the C-shaped beam, a plurality of outer molds are welded below the C-shaped beam, the hydraulic jack is used for jacking the C-shaped beam and the outer molds, a jack support is welded at the bottom of the jack reaction frame, and the jack support is used for supporting the C-shaped beam and the outer molds. The number of the jack supports is related to the jacking height of the C-shaped beam and the jacking height of the outer mold, and one jack support is arranged below each jack. By means of the technic