Casting die repeated cooling device

The invention discloses a casting die repeated cooling device which comprises a working table, a box body, a primary cooler, a secondary cooler, a motor, a conveyor support and a conveyor. Compared with the prior art, the casting die repeated cooling device has the advantages that firstly, a sintered casting die is placed on the conveyor, the motor is started, the motor drives the conveyor to operate so as to convey a casting die into the box body, the primary cooler in the box body blows cold air to the die, the cold air rapidly takes away heat on the surface of the die so as to achieve a primary cooling effect, then cold air is blown to the casting die by the secondary cooler to further take away heat in the die so as to cool the casting die again; the device cools the casting die for twice by the primary cooler and the secondary cooler so as to increase a cooling speed of the casting die, reduce cooling time, improve efficiency and meet the production requirements.