The invention discloses a gas distillation device provided with diversion wires. The gas distillation device comprises a tower body, a tower bottom, a dilute solution outlet, a valve and n layers of distillation modules arranged up and down, wherein the n layers of distillation modules comprise a bottom distillation module and (n-1) layers of upper distillation modules; each upper distillation module comprises a liquid storage trough, a liquid guide surface, a liquid receiving plate and a liquid dropping plate, the inside space of the liquid storage trough is divided into three layers, the liquid guide surface is divided into three layers, the liquid guide surface on each layer is formed by a plurality of parallel diversion wires, one end of the liquid guide surface on one layer is connected with the outer edge of the liquid storage trough on the one layer, the other end of the liquid guide surface is fixedly connected to the inner wall surface of the tower body above the liquid storage trough in the distillation module on the next layer, the liquid receiving plate is located below the liquid storage trough and the liquid guide surface, the top end of the liquid dropping plate is fixedly connected to the bottom of the liquid receiving plate, and a gap between the liquid dropping plate and the inner wall surface of the tower body communicates with an arc-shaped opening. The gas distillation device can effectively increase the gas-liquid contact area in a distillation process, increase the heat and mass transfer efficiency between gas and a liquid and improve the liquid flowing stability and uniformity.