In the past, there has been a problem in that the second processing material falls on the right side of the transfer shelf of the swing selecting shelf, and the object is biased to the right side of the transfer shelf, and the recovery efficiency of the grain is low.A solution chamber 10 for supporting the handling cylinder 11 andA swing selecting shelf 16 having a sieveThe conveyor 21 and the second conveyor 22 provided below the swing selecting shelfA second processing unit 25 for processing a second itemIn a threshing apparatus having a second treatment drum 26The second processing unit 25 has the rear end of the second processing cylinder 26 as a leading edge.The second end is reduced from the second reduction port 27a to the front end and is processed while being transported forward.At the lower portion of the second processing drumThe lower side of the second processing cylinder 26 is disposed below the right-hand side plate 36 of the threshing apparatus 3 and inclined toward the pivotal sorting shelf 16.A plate-like guide member 35 is provided.A second processing spiral blade 28 is provided on the outer periphery of the second processing cylinder 26 below the second reduction portA threshing apparatus characterized in that a perforated plate member 30A is provided below the second processing spiral blade 28.Diagram【課題】従来、揺動選別棚の移送棚の右側に二番処理物が落下し、移送棚の右側に被処理物が偏り、穀粒の回収効率が低いという課題がある。【解決手段】扱胴11を軸装した扱室10と、シーブ18を有する揺動選別棚16と、揺動選別棚16の下方に設けた一番コンベア21および二番コンベア22と、二番物を処理する二番処理装置25と、二番処理胴26を設けた脱穀装置において、二番処理装置25は二番処理胴26の後部を始端部とし、この始端部に二番還元口27Aから二番物を還元して前方へ移送しながら処理する構成とし、二番処理胴26の下方の部位には、二番処理胴26の下側から脱穀装置3の右側板36を越えて揺動選別棚16上に向かって下がり傾斜して配置され、板状のガイド部材35を設け、二番還元口27Aの下側の二番処理胴26の外周に二番処理螺旋翼28を設け、二番処理螺旋翼28の下側に無孔の板体30Aを設けたことを特徴とする脱穀装置。【選択図】 図5