Passive ultralow-energy-consumption green fabricated building

The invention discloses a passive ultralow-energy-consumption green fabricated building, and particularly relates to the field of fabricated buildings. Comprising a prefabricated building body, an embedding groove is formed in the prefabricated building body, first limiting columns are symmetrically arranged on the embedding groove, drainage holes are formed in the side walls of the first limiting columns, a water inlet pipe is further arranged in the prefabricated building body in advance, prefabricated shells are connected to the first limiting columns in a clamped mode, and the whole embedding groove is full of the multiple prefabricated shells; sliding grooves are symmetrically formed in the side wall of each prefabricated shell, second limiting columns are jointly and slidably connected into the two sliding grooves in the same position of every two adjacent prefabricated shells, a plurality of first water inlet holes communicating with the interiors of the shells are formed in the prefabricated shells, a