Provided is a combined harvester. A side panel (27) is arranged at the transverse side of a driver's seat (9) positioned in a driving part (5). A longitudinal framework (48), used for supporting the lateral portion at the rear part of a machine body of the side panel (27), is arranged in the state of upwardly extending as compared with the side panel (27). An air cleaner (71) and a coarse filter (72) are supported onto the longitudinal framework (48). An engine utilizes the air cleaner to supply air. The coarse filter is used for absorption of external air and supply air to the air cleaner (71).