To provide a liquid fuel combustor that reduces power consumption by shortening time for ignition.

The liquid fuel combustor, which comprises a fuel pipe 13 disposed in a closed-vessel-shaped burner body with a combustion cylinder on one side, a carburetor 3 for vaporizing liquid fuel 7 supplied from the fuel pipe 13 and supplying a mixture of vaporized gas and air to a combustion part, and a combustion air nozzle 17 disposed on an inner wall of the carburetor 3, has a local heater 6 along the inner wall of the carburetor 3, and forms a flow of the liquid fuel 7 supplied from the fuel pipe 13 over the surface of the local heater 6 to vaporize it. An air heater 16 is disposed in a combustion air pipe 2, and the fuel pipe 13 is juxtaposed in an air passage downstream of the air heater 16 to mix vaporized gas and heater air. The local heater 6 is disposed with a space against the inner wall of the carburetor 3.