The invention discloses a dust removal device for a cutting machine for refractory materials, which comprises a workbench. Columns are fixedly connected to both sides of the top of the workbench. The top of the column is fixedly connected to a cantilever beam. The center of the bottom of the cantilever beam is A cylinder is fixedly connected at the bottom of the cylinder, and a telescopic column is movably connected to the bottom of the cylinder, and a connection block is fixedly connected to the front of the telescopic column, and a cutting piece is movably connected to the bottom of the connection block through a movable shaft. The present invention achieves the effect of dedusting by arranging water tank, baffle plate, second water pipe, water pump, first water pipe, spray head, bracket, blower, air outlet pipe, air inlet pipe and controller to cooperate with each other, and can be used in fire-resistant When the material cutting machine is in use, it can remove dust from the refractory material cutting machine, avoiding a large amount of dust generated when the refractory material cutting machine is in use, thereby reducing the long-term inhalation of dust by workers and protecting the health of workers. It is suitable for promotion use.