The invention discloses an ore cutting device with dust removal function, which comprises a dust collecting device and a cutting table, a baffle plate and a fixed base are installed above the cutting table, and a dust suction pipe is arranged on the left side of the baffle plate. A blower is arranged on the right side of the baffle, a crossbeam is installed above the fixed base, a mobile frame is installed above the crossbeam, an electric telescopic rod is connected below the mobile frame, and an electric telescopic rod is connected below the electric telescopic rod. A rotating block is installed, a cutting device is installed under the rotating block, a cutting knife is installed inside the cutting device, a supporting plate is installed under the cutting device, and a shock absorbing device is passed between the cutting table and the base connection, a control box is installed above the base, a motor unit is installed inside the control box, a support frame is installed above the control box, and a stone is placed on the right side of the support frame. The invention has the advantages of simple structure, reasonable design and simple operation, and is worth popularizing.