Agricultural natural grain airing device

The invention provides an agricultural natural grain airing device, and relates to the technical field of grain processing. The agricultural natural grain airing device comprises an external guide rail ring fixedly arranged and an internal guide rail ring coaxially arranged with the external guide rail ring, a first fixing block is fixedly arranged on the external guide rail ring, and a second fixing block is fixedly arranged on the internal guide rail ring. When it rains, a box body can be quickly folded, grains in the box body are prevented from being wetted by rainwater, the problem that the grains which are being aired cannot be collected in time when it rains, particularly gusts and rains is solved, and when it does not rain any more, a rotation driving device is controlled to reversely drive a second sliding block to rotate, the box body is laid on the horizontal plane again, so that the grains can be aired continuously, the operation is very simple, and a large amount of manpower is also saved. 本发明提供一种