To provide an environmental disaster preventive equipment system for arranging an environment of a kitchen by separately and efficiently absorbing hot exhaust air generated from cooking in two stages, and reducing a sticking oil mist by cleaning.

In this environmental disaster preventive equipment system of the hot exhaust air of the kitchen for integrally connecting an exhaust duct connected to outside air from an exhaust space by forming the exhaust space by forming a suspended wall in the ceiling corresponding to an arranging place of a heating cooking appliance such as a gas cookstove in the kitchen, a collision plate type smoke remover for allowing a hot blast including the oil mist of waste oil and waste water generated from the heating cooking appliance to abut to the exhaust space vicinal upper part and a filter type smoke remover for scavenging the oil mist to an upper part of the collision plate type smoke remover are juxtaposed, and a cleaning nozzle and a fire extinguishing liquid nozzle are arranged between the filter type smoke remover and the collision plate type smoke remover, and an offensive smell scavenging filter for scavenging an exhaust offensive smell is arranged on the tip of an upper exhaust air cutoff damper of the exhaust duct.