Mast of rotary drilling rig and rotary drilling rig

According to the mast of the rotary drilling rig and the rotary drilling rig, a middle mast is divided into a middle upper mast and a middle lower mast, so that the middle upper mast can be detached, and the total length of the rotary drilling rig can be shorter when the mast is inverted, so that the occupied space is saved, and the transportation cost is saved. According to the rotary drilling rig mast and the rotary drilling rig, due to the fact that the middle mast is divided into the upper middle mast and the lower middle mast, the upper middle mast can be detached, the overall length of the rotary drilling rig can be short when the mast is inverted, occupied space is saved, and transportation cost is saved. 本实用新型公开一种旋挖钻机桅杆及旋挖钻机，该旋挖钻机桅杆及旋挖钻机，由于中桅杆分为中上桅杆和中下桅杆，使得可将中上桅杆拆下，在倒桅时可使旋挖钻机的总体长度较短，以节省占用空间，节约运输成本。本实用新型实施例的旋挖钻机桅杆及旋挖钻机，由于中桅杆分为中上桅杆和中下桅杆，使得可将中上桅杆拆下，在倒桅时可使旋挖钻机的总体长度较短，以节省占用空间，节约运输成本。