Wire cutting machine

The utility model relates to the technical field of wire cutting equipment, in particular to a wire cutting machine, and aims to solve the problem that cutting fluid or powder in an existing wire cutting machine leaks outwards to affect health of workers and environmental safety. In order to achieve the purpose, the wire cutting machine comprises a cutting chamber, a protection cavity, a main exhaust pipeline, a main liquid discharging pipeline, an auxiliary exhaust pipeline and an auxiliary liquid discharging pipeline, the protection cavity is arranged in the cutting chamber, the first end of the main exhaust pipeline is communicated with the cutting chamber, the second end of the main exhaust pipeline is communicated with the outer side, and the first end of the main liquid discharging pipeline is communicated with the cutting chamber. The first end of the auxiliary exhaust pipeline is communicated with the protection cavity, the second end of the auxiliary exhaust pipeline is communicated with the main exh