A burner device (X) in which air (Air) ejected from an air ejection port (21) and fuel (G) ejected from a fuel ejection
nozzle (30) are mixed and burned, the fuel ejection
nozzle (30) being provided with a short-
flame fuel ejection
nozzle (31) and a long-
flame fuel ejection nozzle (32), the short-
flame fuel ejection nozzle (31) and the long-flame fuel ejection nozzle (32) being disposed in the short-flame fuel ejection nozzle (31), and the long-flame fuel ejection nozzle (32) being disposed between the short-flame fuel ejection nozzle (31) and the long-flame fuel ejection nozzle (32). The short-flame fuel
discharge nozzle (31) mixes and burns the fuel at a position close to the air discharged from the air
discharge port, and the long-flame fuel
discharge nozzle (32) mixes and burns the fuel at a position away from the air discharged from the air discharge port.