The utility model relates to an electricity distribution room are with dustproof floor, including floor body, filter plate, mount pad, floor body includes gusset, fresh air inlet, the filter plate is established the floor body below, the filter plate up end is outer along being equipped with first surrounding edge, the filter plate up end is equipped with the ventilation head, the head that ventilates uses the great circle in a set of centre of a circle, well circle, small circle to distribute as the orbit, it strains the circle greatly to be equipped with between big round rails mark and the first surrounding edge, strain the circle between well round rails mark and the big round rails mark in being equipped with, it strains the circle for a short time to be equipped with between little round rails mark and the well round rails mark, filter plate lower extreme off -plate is along being equipped with sealed the cutting, the mount pad is established in the filter plate below, the mount pad up end is equipped with the second surrounding edge, mount pad middle part below is equipped with the exhaust column, the mount pad up end is equipped with sealed slot, the utility model discloses can connect the fan through the exhaust column aspirates, can also strain in, ring through straining greatly ring, strain the circle for a short time and filter and adsorb the dust in the air.