PROBLEM TO BE SOLVED: To solve such the problem that heat from downstream-side piping of a diesel particulate filter (DPF) flows toward an operation part during slow speed traveling and machine body stop because an upper part of the downstream-side piping is disposed backward of the operation part.SOLUTION: In a combine, a lower part of a downstream-side piping 22 for discharging an exhaust gas treated by a DPF 17 is connected to the DPF 17, and a shutter 30 that can switch between a cut-off state in which at least part of an exhaust gas discharged from the downstream-side piping 22 is cut-off and a permissive condition in which the exhaust gas is permitted to be discharged to the outside of the machine is provided in an upper part of the downstream-side piping 22.COPYRIGHT: (C)2015,JPO&INPIT【課題】DPFの下手側配管の上部を操縦部の後方に配置しているので、低速走行時や機体停止時に下手側配管からの熱気が操縦部に向けて流れるという課題がある。【解決手段】DPF17によって処理された排気を排出する下手側配管22の下部をDPF17に接続し、下手側配管22の上部には、下手側配管22から排出される排気ガスの少なくとも一部を遮断する遮断状態と、排気ガスが機外への排出を許容する許容状態とに切替可能なシャッタ30を設けたコンバイン。【選択図】図2
