Dust suppression device of peanut pick-up harvester

The invention provides a dust suppression device of a peanut pick-up harvester. The peanut pick-up harvester is provided with a vine collecting box, a riddling wind riddle and a fruit picking device,wherein an upward exhaust opening is formed in a top surface of the vine collecting box. The dust suppression device is composed of a fugitive dust recovering pipe and a wind leveling device, whereinone end of the fugitive dust recovering pipe is connected with the exhaust opening, and the other end of the fugitive dust recovering pipe is connected with the riddling wind riddle and/or fruit picking device through the wind leveling device; and the wind leveling device is provided with a tubular shell, a plurality of wind guiding pipes which are of concentric-circle distribution are fixed in the tubular shell, the smaller the diameter of each wind guiding pipe, the longer the length of each wind guiding pipe, end faces of the wind guiding pipes close to a wind inlet side are level, an annular step, which is abutted