Rust nut dismounting device

The utility model discloses a rusted nut dismantling device which comprises a machine shell and a rotating mechanism, a connecting plate is fixedly connected to one side of the upper portion of the machine shell, the rotating mechanism is arranged on the inner side of the connecting plate, and a shoveling mechanism is arranged on one side of the rotating mechanism. Through the arrangement of the shoveling mechanism, when a rusty nut is shoveled in constructional engineering, the shoveling cylinder is placed above the rusty nut, a drill bit on the inner side of the shoveling cylinder makes contact with one side of the rusty nut, the rusty nut is covered by the shoveling cylinder, and the rusty nut is prevented from splashing all around; a rotating motor is started to drive a second rotating shaft to rotate a shoveling rod and a drill bit, the rotating drill bit can open holes in the surface of the rusted nut, then an electric push rod is started to push a supporting plate, the supporting plate drives a pulley