The utility model discloses an angle adjusting device for spouting belts and belongs to the technical field of machinery. The angle adjusting device for spouting the belts comprises two spouting bag angle adjusting devices in mirror symmetry mode. Each spouting bag angle adjusting device comprises an adjusting motor, a spouting bag fixing seat, first conical teeth, second conical teeth, an adjusting screw and a spouting bag fixing seat supporting plate. The adjusting motor is fixed on the spouting bag fixing seat supporting plate, the first conical teeth are fixed on the adjusting motor, one end of the adjusting screw is fixedly connected with the second conical teeth, the second conical teeth are matched with the first conical teeth, the other end of the adjusting screw is matched with one end of the spouting bag fixing seat, and the other end of the spouting bag fixing seat is flexibly connected with the spouting bag fixing seat supporting plate. The angle adjusting device for spouting the belts has the advantages of being reasonable in structural design and capable of adjusting position relations of a nozzle and a copper roller to enable the nozzle to be placed in the best position, and enables work efficiency of a belt spouting machine to be high and product quality to be stable and reliable.