Bridge demolition safety protection device

The utility model relates to the technical field of safety protection, and discloses a bridge demolition safety protection device. A top protection plate is hinged to one end of the front protection plate, a foam plate adheres to one side face of the top protection plate, a balance weight strip is welded to the side face, away from the foam plate, of the top protection plate, a fixing frame is hinged to the end, away from the top protection plate, of the front protection plate, and a limiting block is welded to the end, close to the front protection plate, of the fixing frame. A mounting hole is formed in one end of the limiting block, a threaded hole is formed in one end of the front protection plate, a screw is slidably connected into the mounting hole, the screw penetrates through the mounting hole to be in threaded connection with the threaded hole, and explosion-proof glass is fixedly mounted in the front protection plate; screws penetrate through the mounting holes to be in threaded connection with the