PROBLEM TO BE SOLVED: To make the exhaust structure of a combine harvester equipped with a reaping part installed at the front part of a traveling machine body, an operating part installed at the rear direction of the reaping part, a threshing device and a recovering part for recovering cereal grains, installed in parallel in the right and left direction of rear direction of the operating part and an exhaust pipe for exhausting exhaust gas from an engine installed at the lower direction of the operating part, so that the exhaust gas hardly moves toward an operator in the operating part and also straw dusts and mud hardly pile up over the whole part of the exhaust pipe.SOLUTION: This exhaust structure of the combine harvester is provided by passing the exhaustive pipe XP as slanting and facing upward between the threshing device 4 and recovering part 5 from the exhaust part 67 of the engine 60, and being supported by a box body 4S constituting the threshing device 4.COPYRIGHT: (C)2012,JPO&INPIT【課題】走行機体の前部に設けられた刈取部と、刈取部の後方に設けられた運転部と、運転部の後方に左右方向に並設された脱穀装置および穀粒を回収する回収部と、運転部の下方に設けられたエンジンからの排気を排出する排気管とを備えたコンバインの排気構造を、排気ガスが運転部のオペレータに向けて移動し難く、且つ、排気管の全体に亘ってワラ屑や泥が堆積し難くする。【解決手段】排気管XPがエンジン60の排気部67から脱穀装置4と回収部5との間を斜め上向きに通され、脱穀装置4を構成する筐体4Sに支持されている排気構造とした。【選択図】図4