The invention discloses tunnel construction equipment, i.e., a movable trestle comprising a main bridge which is provided with an approach bridge and a support both in the front part and the rear partof the main bridge; the movable trestle is characterized by also comprising a hydraulic system and an electric system as well; both the front end and the rear end of the main bridge are provided witha walking unit; and the main bridge comprises a deformed Bailey truss, a bridge deck and a bridge deck supporting bracket. The invention has the advantages that the research and development of the movable trestle can not only facilitate the hauling-out of slag charge produced by excavation in the cave, but also ensure the normal construction of inverted concrete lining, thereby significantly improving efficiency, shortening construction period, ensuring a construction period and realizing civilized construction as well.