Highway pavement construction quality detection sampling device

The invention relates to the field of highway quality detection, in particular to a highway pavement construction quality detection sampling device which comprises a feeding mechanism and a rotating mechanism. The feeding mechanism comprises a mounting plate, a rotating cylinder and a drilling cylinder, the rotating cylinder is rotatably arranged on the mounting plate around a vertical axis, and the drilling cylinder is mounted at the bottom end of the rotating cylinder; the rotating mechanism comprises a rotating column; the rotating column can slide in the vertical direction relative to the rotating cylinder. A sample core required by detection can be obtained by rotating the drill cylinder; through cooperation of the first water channel and the second water channel, water in the first water channel can make full contact with the circumferential face of the sample core when the drill cylinder drills the sample core, the capillary phenomenon is generated between the sample core and the inner wall of the dril