An agricultural grain cleaner includes an inlet chute (124) having an inlet end (126) and an outlet end (128) positioned below the inlet end. A crop distribution member (132) is positioned adjacent the outlet end of the inlet chute. The crop distribution member (132) includes a distribution disc rotatable relative to the inlet chute about a vertical central axis to impart a horizontal trajectory, away from the central axis, to crop material supplied to the distribution disc from the inlet chute. A fan (160) is operable to generate an air stream from below the crop distribution member, across the horizontal trajectory, to an air-chaff outlet. A grain collection chute has an inlet to receive grain that is cleaned of chaff by the air stream. A tailings collection chute (172) is positioned adjacent to the grain collection chute on a radially inner side thereof.
