High-efficient double-roller core sheller

The utility model relates to a corn thresher in an agricultural machine, particularly a high-efficient double roller core thresher, which comprises a frame, a charging machine, rollers, etc., wherein the number of the rollers is two, namely, a first roller and a second roller which are respectively formed by an upper protecting cover and a lower screen mesh which are buckled together; a first roller shaft and a second roller shaft are respectively arranged in the first roller and the second roller; the first roller shaft and the second roller shaft are transversely fixed on the frame in parallel through a first bearing seat. A feed hopper is arranged above one end of each of the roller, and a discharge hole is simultaneously communicated with the inner parts of the two rollers. Outlets of the two rollers are communicated with a corn cob output chamber which is arranged on the frame. One end of the first roller shaft and one end of the second roller shaft are connected with an external power source in a transmission way through a first driving device, and the other ends of the first roller shaft and the second roller shaft penetrate from the corn cob output chamber and are respectively connected with a corn cob conveying screen arranged in the corn cob output chamber and a driving shaft of a grain cleaning device through driving devices.