PURPOSE: To perform a steady combustion, by a method wherein a drain hole is formed in a part in the proximity of a bottom plate of an atomized fuel path in a combustor, and condensed liquefied fuel is collected.

CONSTITUTION: In a liquid fuel burning device consisting of a fuel atomizer 1, a combustion chamber 14, a blower 7, a valve mechanism, and an air feed pipe 15 and the like, a drain hole 26' is machined in a side part of an atomized fuel feed pipe 13 at a part in the proximity of a bottom plate of an atomized fuel path 24 in a combustor 10. This enables collection of liquefied fuel, produced in the atomized fuel path 24, to the bottom part of the atomized fuel feed pipe 13 through the drain hole 26', and causes natural collection of the fuel to the fuel atomizer 1 through the force of gravity.