Multifunctional fireproof protection device for power construction

The invention belongs to the technical field of electric power facilities, and particularly relates to a multifunctional fire protection device for electric power construction, which comprises a mounting plate, a main supporting anti-seismic bracket, a lateral inclined supporting bracket, a barrel type fire protection assembly, a driving worm assembly and an insulating fire extinguishing liquid storage box. The barrel type fireproof protection assembly, the driving worm assembly and the insulating fire extinguishing liquid storage box are cooperatively matched, a driven worm gear disc in the barrel type fireproof protection assembly can be driven by the driving worm assembly to be spliced to form a blocking ring, and the blocking ring is used for blocking a fire behavior from the outer side; a fire extinguishing cylinder in the cylinder type fireproof protection assembly is rapidly filled with insulating fire extinguishing liquid through an insulating fire extinguishing liquid storage box, the filled insulati