Tractor for withdrawing support on fully mechanized mining face

The utility model relates to a tractor for withdrawing a support on a fully mechanized mining face, in particular to a tractor used for withdrawing the support in a mine after the recovery operation of one mining face is finished. The tractor comprises a cross beam, a drawing pulley is fixed on the cross beam, a connecting beam which is fixedly connected with the cross beam and perpendicular to the cross beam is arranged in the middle of the cross beam, the other end of the cross beam is fixedly connected with a short beam, the short beam is parallel to the cross beam, the short beam, the cross beam and the connecting beam form a portal, the width of the opening of the portal matches with a base of a hydraulic support, and a pin hole is arranged at the position of the middle of the connecting beam corresponding to a pin hole at the head of a cylinder rod of a pushing cylinder of the hydraulic support. The tractor can transversely pull the hydraulic support by aid of the cylinder rod of the pushing cylinder wh