The utility model provides a fuel combustion ware for supercharged boiler test bench, examines interface, ignition interface, oil pipe connector and air tube interface including the fire of locating the combustor entrance point, has the nozzle sleeve pipe at the combustor internal fixation, and at the intraductal nozzle that is equipped with of nozzle cage, the nozzle communicates with each other with oil pipe connector, exit end one side at the nozzle is fixed with air distributor, nozzle sleeve pipe tangential equipartition is followed to air distributor water conservancy diversion exhaust vent, and the opening size outside -in of every water conservancy diversion exhaust vent dwindles, the exit end at the combustor is installed to the burner inner liner, and the burner inner liner end inwards reduces. The utility model discloses a nozzle, air distributor and burner inner liner improve that is used for the main combustion apparatus of supercharged boiler test bench, increases the influence that brings fuel atomization, evaporation, burning according to furnace pressure, to the combustor. the utility model discloses the structure is succinct, considers fully that the pressure boost condition to the influence of combustor, can effectively be applicable to the operation of supercharged boiler test bench, provides safeguard for supercharged boiler's research and development.