Automatic fuel-and-gas co-combustion burner

The utility model discloses an automatic fuel-and-gas co-combustion burner. The automatic fuel-and-gas co-combustion burner comprises a burner body, a gas pipeline, a fuel inlet pipeline and a fuel return pipeline. The gas pipeline, the fuel inlet pipeline and the fuel return pipeline are respectively connected with a gas inlet, a fuel inlet and a fuel outlet. The fuel inlet pipeline is provided with a filter, a fuel pump, an electric heater and a fuel valve which are sequentially connected. A V-shaped fuel valve is arranged on the fuel return pipeline. A gas supply pressure sensor, a pressure regulator and a combined gas valve are arranged on the gas pipeline. The fuel valve, the V-shaped fuel valve, the gas supply pressure sensor and the combined gas valve are respectively electrically connected with a combustion process controller in a back box of the burner body. The automatic fuel-and-gas co-combustion burner has the advantages that with full use of oil field associated gas, environment-friendly social benefits and huge economic benefits are achieved.