PROBLEM TO BE SOLVED: To smoothly discharge soil produced by ridge breaking in a configuration with a ridge breaking device for breaking a shoulder part of the ridge when digging up the leek, and thereby prevent stagnation/deposition of the soil in the ridge breaking device.SOLUTION: A leek harvester 1 has a self-propelled traveling machine body 4 and digs up and harvests the leek 2 from a ridge 3 while advancing the machine body. The leek harvester includes: a digging-up unit 25 for digging up the leek 2 from the ridge 3 a conveyance unit 26 for conveying the leek being dug up by the digging-up unit 25 to the rear a ridge breaking device 80 provided at both the left and right sides in front of the digging-up unit 25, and having a ridge breaking rotor 81 for acting to the ridge 3 while digging up the leek 2 by the digging-up unit 25 to break the shoulder part on both sides of the ridge 3 and a discharging soil guide unit 160 provided in the left and right outside of the machine body to the ridge breaking rotor 81, and guiding the soil produced by the ridge breaking of the ridge breaking rotor 81 discharged from the ridge breaking device 80 to the left and right outside of the machine body.SELECTED DRAWING: Figure 1COPYRIGHT: (C)2018,JPO&INPIT【課題】ねぎの掘り起こしに際して畝の肩部を崩す畝崩し装置を備えた構成において、畝崩しにより生じた土の排出を円滑とし、畝崩し装置における土の停滞・堆積を防止する。【解決手段】自走式の走行機体4を有し、機体を前進させながらねぎ2を畝3から掘り起こして収穫するねぎ収穫機1であって、畝3からねぎ2を掘り起こす掘起こし部25と、掘起こし部25により掘り起こしたねぎを後方へ搬送する搬送部26と、掘起こし部25の前方の左右両側に設けられ、掘起こし部25によるねぎ2の掘起こしに際して畝3に作用して畝3の両側の肩部を崩す畝崩しロータ81を有する畝崩し装置80と、畝崩しロータ81に対して機体の左右外側方に設けられ、畝崩しロータ81による畝崩しによって生じ畝崩し装置80から排出される土を機体の左右外側方に案内する排出土案内部160と、を備えた。【選択図】図1