Water jet cutting machine

The utility model belongs to the technical field of cutting machines, and particularly relates to a water jet cutting machine which comprises a water tank and a water jet head used for cutting a glass plate, the water jet head is arranged at the top end of the water tank, and a filtering component used for cutting residues is arranged in the water tank. A cleaning part used for cleaning cutting residues accumulated in the filtering part is arranged in the filtering part, a discharging part is arranged on one side of the water tank, one side of the discharging part communicates with one end of the filtering part, and a grating plate is fixedly connected to the top end of the inner side of the water tank. According to the utility model, waste water and glass residues sprayed by the water cutting penetrate through the grating plate and fall on the filtering part, the residues filtered by the filtering part are accumulated in the filtering part, after the cleaning part is started, the cleaning part automatically