PURPOSE: To provide a suction means with high cost-performance by controlling the generation of foul odor caused by fire extinction by sucking kerosene vapor generated at the fire extinction time and preventing the generation of rising flame by releasing raised pressure in an oil tank caused by wick-descent into the air.

CONSTITUTION: When a wick 15 is descended rapidly, the pressure in an oil tank 11 is raised up by the volume of a descended wick 15 during the time before a fan 23 starts to rotate. This pressure is released from a wick gap in the air to generate a large up-flame in the past. However, as a bypass path 25 which makes a detour of the fan 23 in the path 22 of a suction means 18 and has lower resistance than that of the gap 14 is installed, the pressure in the tank 11 when the wick is descended passes through the path 25 and pushes up a bypass valve 26' at the outlet of the path 25 and then is discharged into the air. Therefore, there is no such a case as rising flame is momentarily generated at the time of extinguishing.