High-power flame nozzle

The utility model discloses a high-power flame nozzle which comprises a body, a gas inlet unit, a gas outlet unit and a gas outlet unit, a cutting gas path and a combustion gas path are formed in the body, the cutting gas path is aligned with the axis of the body, the combustion gas path is arranged corresponding to the side face of the body, and the cutting gas path and the combustion gas path are used for conveying cutting gas flow and combustion gas flow to the front end of the body respectively. The body is provided with a mixing cavity surrounding the cutting gas path, the mixing cavity comprises a mixing section and a gas conveying section which are arranged up and down, one end of the combustion gas path is connected with the bottom of the gas conveying section, the inner wall of the mixing section is provided with a mixing groove surrounding the cutting gas path, and the gas inlet unit is connected with the mixing section and conveys combustion gas flow into the mixing groove. Through up-down arrangem