Movable welding equipment and deck welding method

The invention belongs to the technical field of ship welding, and discloses movable welding equipment and a deck welding method. The movable welding equipment comprises a movable vehicle body, a guide assembly, a first welding gun assembly and a second welding gun assembly. The top wheels at the front end and the rear end of the movable vehicle body abut against the linear outer edge of the main deck correspondingly, the top wheels can roll and walk along the linear outer edge of the main deck and are not prone to being separated from the linear outer edge of the main deck, the movable vehicle body is not prone to deviating when moving, the linear rate of welding can be improved, and the first welding gun and the second welding gun can conduct welding work at the same time; two welding seams can be welded at the same time through one-time linear walking of the movable vehicle body, the welding efficiency can be improved, the reciprocating walking frequency is reduced, the first welding gun support and the sec