The invention provides a tunnel rescue drilling rig, which comprises a support sleeve and a slag discharge screw shaft. The slag discharge screw shaft is arranged in the support sleeve. The central axis of the slag discharge screw shaft coincides with the central axis of the support sleeve. There is a slag discharge gap between the slag discharge screw shaft and the support sleeve. The slag discharge screw shaft is provided with a through channel for trapped people to pass through along the axis thereof. The tunnel rescue drilling rig of the invention has the advantages of capability of improving the rescue efficiency and rescue probability, compact structure, and the like.