To provide a liquid-supply device and liquid-fuel burning appliance provided therewith, in which locking mechanisms are provided to prevent a liquid-storage equipment from sliding out of the appliance body in case of turnover of the body, and the storage equipment can be easily detached.

The liquid supply device is provided with a fuel tank 200 and a storage space 130, in which the tank 200 is freely attached or detached. A handle 250 is attached on the top of the tank 200 for attachment/detachment of the tank 200. The locking mechanisms 140 and 259 are provided respectively to the wall of the storage space 130 and the handle 250 facing to the wall. The mechanism 140, 259 are locked or released in interlocking with the movement of the handle 250.