Blockage dredging mechanism for wind-air cap of gas generator

The utility model discloses a blockage dredging mechanism for a wind-air cap of a gas generator. The blockage dredging mechanism comprises a wind-air cap, a stirring shaft and a positioning rod, wherein the wind-air cap comprises a pedestal and multiple layers of annular furnace sheets arranged on the pedestal, each two adjacent layers of the annular furnace sheets are connected with one another, and interlayer gaps are formed between the furnace sheets; the stirring shaft is held on the wind-air cap and comprises a stirring shaft body and at least one layer of blade group arranged on the peripheral face of the stirring shaft body along the axial direction, the wind-air cap is rotatably sleeved on the stirring shaft body, each layer of the blade group comprises at least one blade, and the blade of each layer of the blade group is located in the interlayer gap of two layers of the annular furnace sheets adjacent to the layer of the blade group; and the lower end of the positioning rod is fixed, and the upper e