The invention discloses a system and a method for recovering zinc powder. The system comprises a smelting furnace, a pressure reduction settling device, a condenser, a gravity settling device and a cloth bag dust collecting device. The system is reasonable in design and simple in structure, blocking objects on a furnace gas outlet and the zinc powder adhered to condensing pipes can be cleared without stopping production, the operation safety is very high, the operation is convenient, the production benefit is greatly improved, the recovery rate of the zinc powder reaches 100%, impurities and raw material powder mixed in zinc-containing flue gas are removed, the quality of the zinc powder is greatly improved, zinc-containing waste materials can be used as raw materials, resources are saved, and the method is very environment-friendly.