Double-medium nozzle system and double-medium nozzle positioning device

The invention relates to the technical field of nozzles, and particularly discloses a double-medium nozzle system and a double-medium nozzle positioning device. The double-medium nozzle positioning device comprises a base plate, a rotary plate and a gear transmission assembly. The base plate is provided with a dial used for indicating the installation angle of the double-medium nozzle. The rotary disc is rotatably arranged on the base plate, and a fixing part used for mounting the double-medium nozzle is arranged on the rotary disc; the gear transmission assembly is arranged on the chassis and is in transmission connection with the rotating disc. The gear transmission assembly is used for driving the rotating disc to rotate and locking the rotating disc at different angles of the rotating stroke. By means of the double-medium nozzle positioning device, production operators or professional technicians can clearly confirm the nozzle angle, the nozzle angle is convenient to adjust and high in accuracy, the produ