Steel construction cigarette wind channel of building

The utility model relates to a steel construction cigarette wind channel of building, including the pipeline of long square tubular shape, the inside of pipeline is equipped with the baffle, and main air duct and vice wind channel are separated into with the pipeline to the baffle, and the upper portion in vice wind channel is equipped with the opening that is linked together with the main air duct, and the bottom in vice wind channel is equipped with the water conservancy diversion funnel, and the bottom of water conservancy diversion funnel is connected with the pollutant collection box of pull formula, and pollutant collection box's lateral wall is equipped with the observation window, and pollutant collection box's bottom is equipped with carries out the confined bottom plate with the bottom in vice wind channel, the top in vice wind channel is equipped with the contrary board of ending of slope, on the lateral wall of the upper end of pipeline and tip down all the cover be equipped with long square tubul