Disclosed provides a coffee bean roasting machine, including: A supporting table. A roller for roasting the coffee beans through hot air, and the bottom of the roller is provided with an air inlet and the top of the roller is provided with an air outlet. A hot air conveying device is installed in the supporting table. The hot air conveying device includes a fan and a heating device for heating the wind output from the fan to form hot air and transporting the hot air to the roller. An exhaust duct is connected to the air outlet of the roller, and is provided with an air outlet and inside the air exhaust duct which is set an activated carbon filter assembly for adsorbing and filtering fume in the exhaust duct. A collecting device is used to collect the fallen coffee silver in the exhaust duct. A control device is used to control the hot air conveying device to control the roasting time and roasting temperature of coffee beans.本發明提供一種咖啡烘豆機，包括：一支撐臺；一滾筒，用於通過熱風烘焙咖啡豆，滾筒底部設有進風口，頂部設有出風口；一熱風傳送裝置，裝設于裝設於支撐臺內，包括一風機和用於對風機輸出的風進行加熱形成熱風並將熱風傳送至滾筒的加熱裝置；一排風管道，與滾筒的出風口相連，設有排風口且排風管道內設有用於對排風管道中的塵煙進行吸附過濾的活性炭過濾組件；一收集裝置，用於對排風管道中掉落的咖啡銀皮進行搜集；控制裝置，用於通過控制熱風傳送裝置工作以控制咖啡豆的烘焙時間和烘焙溫度。
