The spherical adjustable tuyere is a spout-type air outlet. The high-speed airflow sends air to the specified direction through the nozzle of the valve body. The air jet direction can be conveniently adjusted in the conical space with the apex angle of 35°. It can be adjusted by the valve opening and closing degree. It is used in the occasions of high-speed air supply or partial cooling on the top of tall floors, such as airport waiting halls, indoor stadiums, hotel kitchens, etc.