Grouting device for highway construction

The utility model relates to the technical field of highway construction, and discloses a grouting device for highway construction, which comprises a hopper, a connecting block arranged on the side surface of the hopper, an extension barrel arranged below the hopper, a rubber sheet arranged at the bottom of the extension barrel and attached to the surface of a material barrel, and a fixing rod arranged above a material conveying barrel. A movable rod is connected in the fixed rod in a sliding mode, an electric push rod driving the movable rod to move up and down is arranged in the fixed rod, the movable rod is connected to the hopper, the connecting block is movably connected to the extension cylinder, and the movable connection mode is preferably threaded connection. The rubber sheet attached to the inner wall of the material barrel scrapes materials attached to the inner wall of the material barrel, pushes the materials into the material barrel and even pushes the materials into the material conveying barre