Double-layer glass cup

The utility model provides a double-layer glass cup which is characterized in that an inner glass cup is sleeved with an outer glass cup; the neck parts and the bottom pars of the inner and the outer glass cups are sintered and sealed; a clearance is left between the peripheries of the two glass cups, and the clearance is filled with rarefied air; the bottom parts of the inner and outer glass cups are thickened, and the glass cup is provided with a cover. The utility model has the advantages that the clearance is left between the inner and the outer glass cups, and the rarefied air filled inside can act the part of thermal insulation; in addition, the bottom parts of the inner and outer glass cups are welded and fused together, thereby overcoming the defect that the inner glass cup is easily broken off from the cup neck section because of oscillation or shake during the processes of transportation, carrying and utilization of the product; and the product has the advantages of simple structure and elegant appe