Feeding device of firework machine

The utility model discloses a feeding device of a firework machine. The feeding device comprises a discharging system and an air supply system. The discharging system comprises a driving device, a stock bin, a funnel and a heating device which are sequentially connected from top to bottom. The air supply system comprises a centrifugal fan, an adjusting pipe, an elbow joint and an air outlet pipe, the adjusting pipe, the elbow joint and the air outlet pipe are sequentially communicated with an air outlet of the centrifugal fan, the discharging system is perpendicular to the ground and arranged at the top of the adjusting pipe, and a flow adjusting valve for adjusting deviation of the air outlet of the centrifugal fan is arranged on one side, deviating from the discharging system, of the adjusting pipe; compared with the prior art, the feeding device of the firework machine has the advantages that deviation air of an outlet of the centrifugal fan is centered through the flow adjusting valve, so that firework fu