The invention discloses a multifunctional sofa. The multifunctional sofa structurally comprises a small back cushion, a large back cushion, an atomization cooling device, electric push rods, a lower sofa seat, a controller, an upper sofa seat, a storage cabinet, casters and a sofa support, wherein an atomization air supply device is arranged at the back end of the lower sofa seat; two electric push rods are arranged at the bottom of the atomization air supply device at uniform and equal intervals; the head ends of the electric push rods are connected with the atomization air supply device; interference fit is adopted between the tail ends of the electric push rods and the lower sofa seat as well as the sofa support. The back-to-back atomization cooling device can automatically atomize water into nanometer water droplets after adding water through the automatic atomization mechanism, air can be inhaled through an upper continuous air inlet mechanism and a lower continuous air inlet mechanism and flows rapidly to form air current, and the air current carries out water mist through an air collecting box, so that indoor cooling and humidifying are realized. An accommodating trough plate is arranged inside the air collecting box to accommodate drinks, thereby making the drinks cold and delicious drinks.