High-concentration VOCs waste gas treatment device

The utility model belongs to the technical field of VOCs (volatile organic compounds) waste gas purification, and particularly relates to a high-concentration VOCs waste gas treatment device which is characterized by comprising a pretreatment unit, an adsorption unit, a desorption unit and a chimney, an adsorption outlet of the adsorption unit is connected with a chimney through an adsorption fan and an adsorption pipeline; a desorption outlet of the adsorption unit is connected with an inlet of the desorption unit through a desorption pipeline, a desorption inlet of the adsorption unit is connected with an outlet of the desorption unit through a desorption fan and a pipeline, and the adsorption unit and the desorption unit form a circulating system. The waste gas treatment device has the beneficial effects that the pretreatment unit can effectively remove dust in waste gas, and the adsorption unit adopts a drawer type structural form, so that an adsorbent is convenient and quick to replace, and the energy co