PROBLEM TO BE SOLVED: To provide a combine harvester which can prevent enlargement of the whole combine harvester to be suitably stored while preventing sludge and the like from adhering to an exhauster.SOLUTION: The combine harvester 11 is provided with a grain tank 17 storing unhulled rice after reaping, threshing and sorting, and the exhauster 41 exhausting an exhaust gas of an engine 34 with reduced exhaust noise, wherein a tail pipe 61 of the exhauster 41 extends from an approximately central part in the longitudinal direction of a machine body to machine backward, and an exhaust port 63 of the tail pipe 61 is arranged below the upper surface of the grain tank 17. Furthermore, the exhaust port 63 of the tail pipe 61 is arranged below a horizontal auger 23 of an exhausting auger 21 being stored.
