PROBLEM TO BE SOLVED: To provide a combine capable of discharging threshing discharge dust to a limited narrow location in a field on a back face of a grain header 12 and easily preventing the threshing discharge dust from scattering in an unreaped grain direction in the field.SOLUTION: A combine includes: a reaping part 3 including a grain header 12, a feeder house 11, and a reaping blade 15； a threshing part 9 including a threshing cylinder 21； and a travel machine body 1 including a travel part 2 and engine 7. The threshing part 9 is mounted on an upper face side of the travel machine body 1 in a lateral arrangement posture with the threshing cylinder 21 facing a right/left direction. Grain culms are fed from the reaping part 3 to a threshing port 9b on one side front part of the threshing part 9 and threshing discharge dust is discharged from a dust discharge port 23 on the other side part of the threshing part 9. The dust discharge port 23 is arranged while facing a front lower part above the travel part 2 on one side of the travel machine body 1 and the dust discharge port 23 is formed while facing a back face of the grain header 12. The threshing discharge dust of the threshing part 9 is discharged toward the back face of the grain header 12.SELECTED DRAWING: Figure 20【課題】穀物ヘッダー１２背面の限定された圃場の狭少場所に脱穀排塵を排出でき、圃場の未刈り穀稈方向に脱穀排塵が飛散するのを容易に防止できるようにしたコンバインを提供しようとするものである。【解決手段】穀物ヘッダー１２とフィーダハウス１１と刈刃１５を有する刈取部３と、扱胴２１を有する脱穀部９と、走行部２及びエンジン７を設ける走行機体１を備え、扱胴２１が左右向きの横置き姿勢に脱穀部９を走行機体１上面側に搭載し、脱穀部９一側前部の扱口９ｂに刈取部３から穀稈を供給すると共に、脱穀部９他側部の排塵口２３から脱穀排塵を排出するコンバインにおいて、走行機体１一側の走行部２上方で前下向きに前記排塵口２３を開設し、穀物ヘッダー１２の背面に対向させて前記排塵口２３を形成し、穀物ヘッダー１２の背面に向けて脱穀部９の脱穀排塵を排出するように構成したものである。【選択図】図２０
