PROBLEM TO BE SOLVED: To provide a combine harvester having a tail pipe of an exhauster capable of efficiently discharging discharge gas in a direction remote from the machine body free from interference of unloading auger.SOLUTION: The combine harvester comprises a grain tank 17 storing unhulled rice after reaping, threshing and sorting, a discharge auger 21 provided with a vertically conveying auger 22 and a horizontally conveying auger 23 for discharging the unhulled rice in the grain tank 11, and an exhauster 41 exhausting the exhaust gas of the engine 34 with reduced exhaust noise, wherein the tail pipe 61 of the exhauster 41 is arranged in an approximately central part in the longitudinal direction of the machine body downward of the horizontal conveying auger 23 of the exhausting auger 21 and extending rearward of the machine body.
