The invention discloses a pneumatic conveying type edible bean combine harvester which comprises a walking mechanism, a cutting mechanism, a conveying mechanism, a threshing mechanism, a cleaning mechanism, a discharging mechanism, a lifting mechanism and a storage bin. The walking mechanism loads all parts, the lifting mechanism is connected with the cleaning mechanism and the storage bin, the storage bin comprises a bin body, an inner cylinder, an outer cylinder, a rotating rod and a sealing plate, a discharging cylinder is arranged on a side plate of the bin body, the outer cylinder is vertically fixed to a bottom plate of the bin body, the bottom end of the inner cylinder is inserted into the outer cylinder and penetrates through the bottom plate of the bin body, and the inner cylinder can rotate in the outer cylinder. A first round hole is formed in the surface of the outer cylinder, and a second round hole which is the same as the first round hole in size and flush with the first round hole in height is formed in the surface of the inner cylinder. According to the combine harvester, the rotatable inner cylinder is arranged in the storage bin, the inner cylinder is matched with the outer cylinder, beans are conveyed to the discharging cylinder through airflow generated by the lifting mechanism, and a traditional dumping type storage bin is replaced; the structure is simpler, and bean bagging is facilitated.