The present invention relates to a novel full-feeding combine harvester, comprising a frame, a cutter bar being mounted at the front end of the frame, a threshing device being directly connected to and mounted behind the cutter bar, a threshing drum in the threshing device being dynamically connected to two driving shafts, a grain tank being mounted below the threshing drum, a suction outlet being disposed at the lower end of the grain tank, and the suction outlet being communicated, by an suction outlet pipe, with a multi-cylinder separator for separating grains from debris, so that the grains and the debris in the grain tank enter the multi-cylinder separator for separating grains from debris and are separated, the grains are bagged at a grain exit and the debris is blown out by a fan. The present invention is simple and reasonable in structure, is practical, is easy to manufacture, assemble, and maintain, and achieves a desirable effect after use.
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