The utility model provides a discharged straw conveying device which can relieve stoppage of discharged straws and smoothly convey the discharged straws backwards. The technical scheme is that: a conveying terminal part of a plant root conveying device (81) of a plant root conveying part (80) faces the upper side of a discharged straw cutting machine (96) on the rear side of a threshing device; and a conveying terminal part of a tassel tip conveying device (61) of a tassel tip conveying part (60) faces the upper side of a suction dust removal fan (90) arranged on the lower side of a discharged straw conveying device (50).