PROBLEM TO BE SOLVED: To prevent straw dust and the like from falling on an exhaust pipe. SOLUTION: A driving unit 4 located on the front side of the machine body, a grain tank 6 located on the rear side of the driving unit 4, a grain removing device 5 located on the lateral side of the machine body of the grain tank 6, and a driving unit. An engine 17 located below 4, an exhaust gas purification device 21 for purifying the exhaust gas from the engine 17, and an exhaust pipe for discharging the treated exhaust gas discharged from the exhaust gas purification device 21 to the outside of the machine body are provided. An exhaust pipe is provided between the grain tank 6 and the grain removal device 5 in a state of extending from the discharge portion of the exhaust gas purification device 21 to the upper end side of the grain removal device 5 in a backward inclined posture, and is provided from the discharge port of the exhaust pipe. On the front side, a cover extending over the grain removing device 5 and the grain tank 6 is provided at a position located above the exhaust pipe. [Selection diagram] Fig. 2【課題】排気管にワラ屑等が降りかかるのを防止できるようにすることが望まれていた。【解決手段】機体前部側に位置する運転部４と、運転部４の後方側に位置する穀粒タンク６と、穀粒タンク６の機体横一側に位置する脱穀装置５と、運転部４の下方に位置するエンジン１７と、エンジン１７からの排ガスを浄化処理する排ガス浄化装置２１と、排ガス浄化装置２１から排出される処理後の排気を機体外部に排出する排気管とが備えられ、排気管が、穀粒タンク６と脱穀装置５との間に、排ガス浄化装置２１の排出部から後上がり傾斜姿勢で脱穀装置５の上端側箇所まで延びる状態で設けられ、排気管の排出口よりも前側において、排気管よりも上側に位置する箇所に、脱穀装置５と穀粒タンク６とに亘るカバーが設けられている。【選択図】図２
