In the present invention, a space is formed on the inner side and air is introduced into the lower portion of the air inlet 110 to allow air to flow in. A main body housing 100 formed with a hole 120 and an annular clamping part 130 formed on a rear surface thereof and having a bean spout 140 formed to discharge roasted beans to the lower front A seedling insertion unit 200 connected to the air exhaust hole 120 of the housing 100 and formed with an injection hole 210 for injecting green soybean seed into the main body housing 100 through the air exhaust hole 120, A drum 300 rotatably installed inside the main body housing 100 and having a front surface opened and a roasting portion 310 formed at an inner side to draw a bean at the inside of the main body housing 100, A first exhaust pipe 400 formed inside the main body housing 100 and connected to the air exhaust hole 120 to discharge air and the inside of the main housing 100 to the outside A second exhaust pipe 510 connected to the first exhaust pipe 400 on the outside and a clamp 520 detachably attached to the clamp receiving portion 130 are formed on the rear surface of the cyclone dust collector The cyclone dust collector 500 is rotated according to whether or not the clamping part 130 and the clamp part 520 are coupled to each other so that the first exhaust pipe 400 and the second exhaust pipe 510 are separated The present invention relates to a coffee roaster having a detachable exhaust pipe.본 발명은 내측에 공간이 형성되되, 하부에는 외부의 공기가 그 내측으로 유입되도록 공기인입공(110)이 형성되고, 전면 상부에는 공기인입공(110)을 통해 인입된 공기가 이동되도록 공기배기공(120)이 형성되며, 후면에는 고리형상의 클램프걸림부(130)가 형성되고, 하부 전면에는 로스팅된 원두가 배출되도록 원두배출구(140)가 형성되는 본체하우징(100)과, 상기 본체하우징(100)의 공기배기공(120)에 연결되되, 생두가 상기 공기배기공(120)을 통해 상기 본체하우징(100) 내측으로 투입되도록 투입공(210)이 형성되는 생두투입부(200)와, 상기 본체하우징(100) 내측에 회전 가능하게 설치되되, 전면은 개구되고, 내측에는 생두가 인입되어 원두가 생성되는 로스팅부(310)가 형성되는 드럼(300)과, 상기 본체하우징(100) 내측에 형성되되, 상기 공기배기공(120)과 연결되어 본체하우징(100) 내측의 공기 및 체프(10)를 외부로 배출시키는 제1 배기관(400)과, 상기 본체하우징(100) 후면에 회전가능하게 결합되
