The utility model relates to the technical field of commercial stoves, and discloses a commercial stove burner which comprises a supporting base, a premixing cylinder, a supporting table, a reserved table, a stove burner body and an electric push rod I. The premixing cylinder is fixedly connected to the upper end of the supporting base, the supporting table is fixedly connected to the upper end of the premixing cylinder, and the reserved table is fixedly connected to the lower end of the stove burner body. The reserved table is fixedly connected to the upper end of the supporting table, and the stove head is fixedly connected to the upper end of the supporting table. According to the furnace end of the commercial stove, by improving the furnace end of the commercial stove, the
gas mixing and stirring capacity of the furnace end of the commercial stove is improved, when low-pressure
fuel gas passes through the precise flow limiting
nozzle and is premixed with air in the air
pipe for the first time, then the
fuel gas enters the premixing cavity, and the
fuel gas is stirred and premixed for the second time under the action of the perturbation disc with holes; after being fully mixed, the mixture enters the
combustion head through the flow guide
pipe cyclone piece for three times of premixing and then is sprayed out through densely-distributed spraying holes of the
combustion head for ignition, and external kindling
flame-out protection is achieved.