The utility model provides a flame projecting system, includes frame (11), oil tank (12), oil pump (13), hard tube (10), shower nozzle (17), the hard tube includes inner tube and outer tube, the oil tank with the oil pump is installed in the frame, the oil -out of oil tank with the oil inlet of oil pump links to each other, the oil -out of oil pump links to each other with the hard tube, the hardtube links to each other with the shower nozzle, flame projecting system still include with the hard tube falls into two sections flame projecting direction adjustment device, flame projecting direction adjustment device includes steering wheel (1), pipe (4), hose (2), guide arm (3), the steering wheel with two sections are located respectively to the pipe on the hard tube, hose and two sections the hard tube links to each other, the guide arm with the steering wheel with the pipe links to each other. The utility model discloses an adopt flame projecting direction adjustment device, improved the sensitivity of unmanned aerial vehicle flame projecting system flame projecting direction adjustment, enlarged flame projecting system's single burning scope.