The utility model discloses a quick drying device for residual accumulated water in a hole after a pavement core sample is drilled, which comprises a straight pipe capable of extending into a drill hole, and a plurality of vent holes are densely distributed on the pipe wall of the straight pipe; a blower; one end of the ventilation hose is connected with an air outlet of the air blower, and the other end of the ventilation hose is connected with an air inlet of the straight pipe. The device has the advantages that firstly, accumulated water which cannot be normally drained in a drilled hole can be timely subjected to forced air drying, so that subsequent drilled hole filling construction is facilitated, and water damage caused by accumulated water of an internal structure of a road surfaceis effectively prevented; secondly, due to the self-weight effect of the stainless steel straight pipe, the situation that the ventilation pipe swings along with wind caused by wind power is avoided;in addition, the device is formed by combining independent parts, and when a certain part breaks down, the part can be repaired and replaced in time conveniently.