The multi-stage hot air temperature control furnace core comprises a combustion base, a blower, a multi-stage supply unit, an outer air cover and a hot air cover.The combustion seat is provided with an air inlet pipe, a gas inlet pipe and a hot air exhaust pipe.The air intake pipe of the blower connected to the combustion seat is used to guide the air to the combustion seat.The multi-stage supply unit is arranged on a gas pipeline connected to the gas inlet pipe of the burner to automatically supply gas to the combustion seat in a controlled and multi-stage way.The outer air cover is arranged on the combustion seat and is sleeved outside the hot air exhaust pipe of the combustion seat.The hot air hood is arranged in the outer hood and covered on the hot air exhaust pipe of the combustion seat.一種多段熱風溫控爐心包括一燃燒座、一鼓風機、一多段供給單元、一外風罩、及一熱風罩。燃燒座設有一空氣進氣管、一瓦斯進氣管、及一熱風排管。鼓風機連通至燃燒座之空氣進氣管，用以導入空氣予燃燒座。多段供給單元設置於連通至燃燒器之瓦斯進氣管的一瓦斯管路上，用以受控制而多段地自動供給瓦斯予燃燒座。外風罩設置於燃燒座上並套於燃燒座之熱風排管外。熱風罩容置於外風罩內並罩於燃燒座之熱風排管上。
