Press hammer anvil preheating device and method

The invention discloses a press hammer anvil preheating device and method. The press hammer anvil preheating device comprises an upper fixed fire-resistant heat preservation furnace body wrapping theside wall of an upper hammer anvil, a lower fixed fire-resistant heat preservation furnace body wrapping the side wall of a lower hammer anvil and a detachable fire-resistant heat preservation heatingfurnace body arranged between the upper hammer anvil and the lower hammer anvil. When the press hammer anvils need to be preheated or to be subjected to heat preservation, the detachable fire-resistant heat preservation heating furnace body can be arranged on the lower hammer anvil, the upper hammer anvil is adjusted so as to enable the upper hammer anvil to fall into the detachable fire-resistant heat preservation heating furnace body, the detachable fire-resistant heat preservation heating furnace body is used for heating the upper hammer anvil and the lower hammer anvil, and meanwhile, theside walls of the upper ha