Vinasse spreading and airing machine

A vinasse spreading and airing machine comprises a main rack, a conveying chain plate and a movable frame, the main frame is provided with a feeding device at one end of the conveying chain plate; a ploughing and turning device, a stirring device, a yeast powder feeding device and an air drying device are arranged on the moving frame; the feeding device comprises a feeding hopper, the feeding hopper is provided with a discharging port in the upper side of the conveying chain plate, a plurality of pushing plates are arranged at the bottom of the feeding hopper, and a discharging scattering shaft is arranged at the position, between the discharging port and the conveying chain plate, of the main rack; the ploughing and material turning device comprises two material turning shafts which are oppositely arranged, and plowshares are uniformly arranged on the material turning shafts; the stirring device comprises a plurality of stirring groups arranged on the moving frame; the yeast powder feeding device comprises a