Air nozzle and hot air heating device

The utility model provides an air nozzle which comprises a first shell, a partition plate and a plurality of cover plates, a first cavity is formed in the first shell, the first shell is provided with an air inlet communicated with the first cavity, the partition plate is located on one side of the first shell and suitable for sealing the first cavity, and the cover plates are arranged on the partition plate. The partition plate is provided with a plurality of first through holes communicating with the first cavity, and the cover plates are suitable for being arranged in the first through holes to block the corresponding first through holes. The number of the blocked first through holes in all the areas is adjusted by arranging the cover plate, the air volume of hot air passing through all the areas can be adjusted, and zoning temperature regulation and control are achieved. The utility model further provides a hot air heating device comprising the tuyere. 本实用新型提供一种风嘴，包括第一壳体、隔板和多个盖板，所述第一壳体内形成有第一空腔，所述第一壳体开设有与所