The invention relates to a rectification device applicable to a coal-to-ethylene glycol production water liquor industrial recycling system. The rectification device comprises a reboiler barrel provided with a reboiler clamping sleeve outside, a stripping section barrel which is arranged at the top of the reboiler barrel and is communicated with the reboiler barrel, a power device which is arranged at the top of the stripping section barrel and used for driving a rotating shaft as well as a reboiler scraper mounted in the reboiler barrel and a rotating packed bed arranged inside the stripping section barrel, wherein the rotating shaft vertically and downward passes through the rotating packed bed, extends to the interior of the reboiler barrel and is sequentially combined with the rotating packed bed and the reboiler scraper; a liquid distributor is arranged in the rotating packed bed; and a material gas phase outlet connected with a rectifying tower is formed in side above the stripping section barrel, a raw material inlet is formed above the rotating packed bed, a heated steam inlet is formed in the upper part of the reboiler clamping sleeve, a steam outlet is formed in the lower side part of the reboiler clamping sleeve, and a heavy component outlet is formed in the bottom of the reboiler barrel.