The drone flamethrower, different from the traditional gasoline flamethrower, uses alcohol as fuel instead, eliminating the safety issue of gasoline dripping and leakage. It ignites with a high-pressure electric arc through gasification, making it fearless of strong winds. A new high-power laser-assisted aiming device has been added, which can precisely lock onto the target before the fire is sprayed. Combined with a rotatable nozzle, it can ignite the floating objects on the power grid in one spray. Meanwhile, it integrates an adjustable pressure system, with the fire jet distance flexibly adjustable up to 7 meters. It is equipped with a dedicated remote control for remote operation, making it easy to handle various complex scenarios. It can safely and efficiently assist power companies, power grid systems, etc. in removing foreign objects floating on high-voltage lines, ensuring the safe and stable transmission of electricity.