Powder feeding system and feeding system of chlorination furnace

The utility model discloses a powder feeding system, comprising a storage hopper (4), a feeding section and a feeding pipe (13) which are connected sequentially, wherein the storage hopper (4) is provided with a stirring air pipe (10); a push air pipe (8) is arranged on the feeding pipe (13), and the stirring air pipe (10) and the push air pipe (8) are respectively communicated with a pressure air source. The utility model also discloses a feeding system of a chlorination furnace. The feeding system is the powder feeding system; and a discharge end of the feeding pipe is connected with the feeding pipe of the chlorination furnace, and the pressure air source is a dry nitrogen air source. According to the powder feeding system and the feeding system of the chlorination furnace disclosed by the utility model, the phenomenon that the smooth feeding cannot be carried out owning to powder blockage can be reduced.