The invention discloses a boiler fuel nozzle which belongs to boiler ancillary facilities and is mainly used for mother pipe boilers in iron and steel enterprises. The boil fuel nozzle comprises a shell; and the shell is provided with two coal powder mixing ports, a secondary air port, and a tertiary air port. The boiler fuel nozzle is characterized in that the shell also comprises six coke oven gas pipes and a plurality of blast furnace gas pipes, wherein the coke oven gas pipes are arranged among the blast furnace gas pipes, and the coke oven gas pipes and the blast furnace gas pipes are all made of 1Cr18Ni9Ti. The boiler fuel nozzle is simple is structure, stable in burning, and energy-efficient and environment-friendly. By using the boiler fuel nozzle, for every year, blast furnace gas can be used by 1,400,000GJ, standard cola can be saved by 48,000t, dust is reduced by 16,000t, and discharged SO2 is reduced by 1,600t. Fuel switching is flexible and convenient, i.e. the switching between gas and coal powder takes about one hour.