The utility model relates to an automatic product unloading machine for a domestic ceramics tunnel kiln, which comprises an ascending device, a descending device, a pneumatic slipway rack, conveyor belts, a product bearing frame and an electric pneumatic control system. The automatic product unloading machine is characterized in that an iron supporting plate is installed on the ascending device; a supporting plate and a seggar are put on the iron supporting plate; one conveyor belt passes through the lower middle part of the ascending device; another iron supporting plate is installed on the descending device; the other conveyor belt passes through the lower middle part of the descending device; two linear slide rails are arranged on the pneumatic slipway rack; four slide blocks are installed on the two linear slide rails; the four slide blocks are connected with four fulcrums of a sliding rack which is connected with a cylinder; and two cross beams are installed on the sliding rack. The automatic product unloading machine achieves the automatic unloading of products in the domestic ceramics tunnel kiln, improves the production efficiency, saves labor force for enterprises, and reduces labor intensity of workers.