The invention relates to the technical field of the energy and chemical industry, in particular to a burner flame nozzle mechanism. The burner flame nozzle mechanism comprises at least two gas channels arranged in the same direction, wherein an opening and closing adjusting valve is mounted on at least one gas channel; gas inlets of the gas channels are used for communicating with one same main fuel pipe; and gas outlets of the gas channels are used for being connected to one same burning chamber. By the adoption of the burner flame nozzle mechanism, the gas outlet area of the actual air outlets can be adjusted and converted, the burner flame nozzle mechanism can adapt to various burning media through adjustment, so that the burner flame nozzle mechanism is high in applicability, and the using convenience is high.