The invention discloses a method for producing a multi-functional aerated concrete block. The method comprises 1) preparing 250 to 350 parts by weight of water, 3 to 8 parts by weight of aluminum
powder, 60 to 80 parts by weight of
gypsum, 80 to 90 parts by weight of
lime, 150 to 200 parts by weight of
tailings, 150 to 200 parts by weight of
silt, 30 to 50 parts by weight of
slag, 60 to 80 parts by weight of
fly ash, 70 to 90 parts by weight of
cement, 3 to 8 parts by weight of additives, 30 to 50 parts by weight of a foam stabilizer and 5 to 20 parts by weight of
sodium carbonate, 2) carrying out mixing stirring, 3) carrying out pouring, then carrying out
gas formation initial coagulation at 45-60 DEG C through an initial curing chamber, carrying out initial curing for 2h and then carrying out
cutting, 4) carrying out segmented maintenance, and 5)
processing a finished product, discharging the finished product out of a reactor, carrying out inspection and carrying out classification stacking.