The utility model relates to a special -shaped dryer that ventilates for in the tunnel work progress, its characterized in that includes dryer skeleton, fixed hoisting point, strenghthened type dryer cloth, and fixed hoisting point setting is in the top of dryer skeleton, and strenghthened type dryer bale of cloth is wrapped up in in the periphery of dryer skeleton, the dryer skeleton constitute by design reinforcing bar and tensioned wire, design rebar manufacturing becomes an ellipse, is connected with the tensioned wire at oval -shaped horizontal segment both ends, the every interval of dryer skeleton sets up 1 for 1 meter, wraps up in the back by strenghthened type dryer bale of cloth and forms the special -shaped dryer that ventilates. The utility model discloses an abnormal shape dryer is in the aspect of well light -section tunnel excavation, and the effectual tunnel space that utilizes facilitates for the construction transportation is current in the hole, produces better social economic benefit.