Repairing device for concrete cracks

The utility model relates to the technical field of building equipment, in particular to a concrete crack repairing device which comprises a machine body for repairing concrete cracks and a machine frame, the machine frame is fixedly connected with the outer wall of one side of the top end of the machine body, and material storage assemblies for storing materials are arranged on the inner walls of the two sides of the top of the machine frame. A mixing assembly for mixing materials is arranged on the inner wall of the bottom of the rack, and a heating assembly for heating the materials is arranged on the outer wall of the other side of the bottom of the mixing assembly; materials at the bottom are conveyed to the top of the mixing barrel all the time to be evenly mixed and stirred to avoid layering, the materials are evenly mixed in the mixing barrel and then output, the stirring structures are arranged on the top and the bottom, and the materials can be conveyed from the bottom all the time to prevent layeri