Self-cleaning bubbler

The utility model relates to a self-cleaning bubbler, belongs to the technical field of glass melting, and solves the technical problems of pipeline blockage, low sampling efficiency, high labor cost, complicated sampling and the like of the existing bubbler. According to the solution, the self-cleaning bubbler comprises a plurality of gas washing bottles, a main gas inlet pipeline and a main gas outlet pipeline, and control valves are arranged on the main gas inlet pipeline and the main gas outlet pipeline; a gas inlet and a gas outlet are formed in the top end of the gas washing bottle, and a gas inlet pipe is vertically arranged at the gas inlet; a bubbling head is arranged at the lower end of the air inlet pipe; the self-cleaning bubbler further comprises a cleaning water pump, one end of the cleaning water pump is communicated with the main air inlet pipeline and the connecting pipeline through a connecting water pipe, and a flow control valve is installed on the connecting water pipe. An air pressure co