Multifunctional crack pouring gun

The utility model relates to the technical field of road repair, in particular to a multifunctional crack pouring gun which comprises a control box, a material conveying pipe, a gear A, an adapter and a fan. The bottom of the control box is provided with a control handle. The material conveying pipe is arranged on the control box, and a feeding pipe is arranged on the material conveying pipe. A hollow shaft is rotationally arranged in the conveying pipe, inserted into the control box and rotationally connected with the control box. Propeller blades are arranged on the hollow shaft, and the outer edges of the propeller blades are in clearance fit with the inner wall of the conveying pipe. The hollow shaft is sleeved with the gear A. The motor is in driving connection with the gear B. The gear B is in meshed connection with the gear A. The hollow shaft is inserted into and rotationally connected with the adapter, and the adapter is communicated with the interior of the hollow shaft. The fan is arranged in the c