The utility model provides an antidrip smelting furnace is equipped with in smelting furnace furnace body bottom?discharge mouth department and accepts the lead -over groove, accepts the lead -over groove includes connecting portion and collection portion, connecting portion and collection portion are connected as an organic wholely, connecting portion be cylindric barrel, the furnace body bottom?discharge mouth of the connecting portion of accepting the lead -over groove and smelting furnace pass through threaded connection, to accept the top and the bottom of lead -over groove all uncovered, and the top of accepting the lead -over groove uncovered to be greater than its bottom uncovered at the top of lead -over groove of accepting, be equipped with the lid that can open and shut on the bottom is uncovered. Prevented that the smelting furnace from taking place the water clock when the ejection of compact, what prevented the water clock smelts the injury of product to the human body, guaranteed the smooth outflow of smelting the product in the furnace body, prevented to smelt the product and block up the discharge gate, extrude at original smelting furnace and to add the use, avoided the cost of making the smelting furnace again.