A furnace for melting and holding aluminum materials, the furnace being
characterized in that the furnace comprises: a pre-heating tower for
pre-heating aluminum blocks,
a melting crucible furnace which receives a supply of aluminum blocks from
the pre-heating tower at a position immediately under the pre-heating
tower, and a holding crucible furnace which receives a continuous supply
of molten aluminum from the melting crucible furnace at a position
side-by-side with the melting crucible furnace, and that an exhaust gas
resulting from combustion in the melting crucible furnace can be supplied
to the inside of the pre-heating tower as an ascending current for heat
exchange with aluminum blocks, the furnace being capable of continuous
melting and energy savings.