Light debris edulcoration device with adjustable, including frame, transmission with connect miscellaneous the fill, the frame is fixed in the jigging machine exit, connecing miscellaneous the fill toset up in the left bottom of frame, and transmission utilizes the screw rod to adjust about, about realizing, utilizes drive motor drive to lead to the axle and rotates to make two velamen areas rotate in step, the harrow thing claw of installation on the belt moves, and dial the levitate light debris of the surface of water and arrive the frame left side, and the impurity discharging pipe discharge through connecing miscellaneous fill of bottom. This device can carry out high regulation according to the height of jigging machine middle water level and the showy thickness of light debris, also can carry out the regulation of width to satisfy the not needs of unidimensional jigging machine, accomplish the edulcoration of light debris in addition in jigging machine work, do not influence the work of jigging machine, can also detach to great degree the light debris in the grain, both saved the manpower, reduced the influence to next process again.