The invention relates to the technical field of
combustion equipment, in particular to a self-preheating temperature adjusting
gas burner. The self-preheating temperature adjusting
gas burner comprises a gas
pipe, a primary air flowing guiding
pipe and a secondary air flowing guiding
pipe, a shell is internally provided with the primary air flowing guiding pipe, the primary air flowing guiding pipe is coaxially arranged on the outside of the gas pipe in a sleeving mode, and the secondary air flowing guiding pipe communicates with the gas outlet end of the gas pipe. According to the self-preheating temperature adjusting
gas burner, the
flame temperature is adjusted by controlling the air inlet amount of the secondary air flowing guiding pipe, meanwhile, secondary air and
flue gas are mixed,the temperature of the
flue gas is reduced, thus the
flame temperature is adjustable, and heat carried by the
flue gas can exchange with primary air, so that the primary air is more suitable for
combustion supporting, meanwhile, the heat of the
flue gas is reduced, the temperature of
combustion supporting air is increased, and energy sources are saved.