Wood mold for machining tower column outer mold and using method of wood mold

The invention discloses a wood mold for machining a tower column outer mold. The wood mold comprises a wood molding box and a wood composition board. The top of the wooden modeling box is sunken from top to bottom to form a cambered surface groove, and the two opposite ends of the cambered surface groove penetrate through the two opposite sides of the wooden modeling box. And the inner bracket of the wooden modeling box is accommodated in the central hole. The wooden combined plate comprises a plurality of unit long-strip plates, every two adjacent unit long-strip plates are parallel to each other and abut against each other, so that the unit long-strip plates are spliced into an arc-shaped whole-block structure, the wooden combined plate is contained in the arc-shaped groove and is attached to the bottom of the arc-shaped groove, and the unit long-strip plates are supported by the inner support. Each unit strip plate is connected with the inner support through a plurality of first screws, and the wood combin