The invention discloses a tower, comprising: a steel frame including a steel body and a top seat, wherein the top seat includes a first top frame and a second top frame; an adjusting device including a rotary support that is arranged on the second top frame and that may rotate around a vertical direction; a first moving mechanism that may be disposed above a rotating mechanism movably along a first axis; a second moving mechanism that may be disposed above the first moving mechanism movably along a second axis; an operating platform disposed above the second moving mechanism. The tower with the above structure has the advantages that the tower is used for supporting an injection head without a crane, operation risk in construction is less, and the special requirement on multi-axis movement of the injection head is met; after setup, the tower, together with the injection head and a blowout prevention system, can be hoisted across a shaft, installing time is saved, and the efficiency is improved.