The invention provides a smoke exhaust system of a glass melting furnace, which is provided with a front waste heat boiler 1b connected with a flue of the glass melting furnace. The front waste heat boiler is connected with a gas distribution cylinder through a pipeline; the front waste heat boiler is connected with a draught fan 1c; the draught fan 1c is driven by a motor M; and the draught fan 1c is connected with a chimney through the pipeline. In addition, the smoke exhaust system is also provided with at least one waste heat boiler 2b-nb connected with the flue of the glass melting furnace, each waste heat boiler is connected with the gas distribution cylinder through the pipeline, draught fans 2c-nc correspondingly connected with each waste heat boiler are driven by steam turbines 2e-ne, the draught fans 2b-nb are connected with the chimney through the pipelines, the air inlet ends of the steam turbines are connected with the gas distribution cylinder through the pipelines, the air outlet ends of the steam turbines are connected with a condenser through flashboards 2e-ne, the condenser is connected with a deoxidizing water tank, and water is supplied to each waste heat boiler through the pipelines. The smoke exhaust system of the glass melting furnace has the advantages that the height of the chimney is reduced through mechanical forced draft; and the steam turbines are driven by steam so as to drive the draught fans of the waste heat boilers, so the waste heat is utilized, the usual running cost is reduced, and proper temperature and pressure are supplied to smoke treatment.