The invention discloses an efficient dehaze waste heat recovery energy-saving emission reduction device. The device comprises an SP heat exchange pipe, an upper tube plate, a lower tube plate, an inner barrel, a spiral plate and an outer barrel. The inner barrel is provided with a smoke inlet tube orifice and an inner barrel smoke outlet tube orifice. The lower tube plate is connected with a lower tube box provided with an air inlet tube orifice. The upper tube plate is connected with an upper tube box provided with an air outlet tube orifice. The spiral plate is spirally arranged on the outer wall of the inner barrel. The upper end of the inner barrel and the upper end of the outer barrel are connected through closure plates and reinforcing rib plates. The upper end of the outer barrel is provided with an outer barrel smoke outlet tube orifice, and the lower end of the outer barrel is connected with a dust hopper provided with a dust removing opening. The device has high heat exchange efficiency and can prolong the structure time of equipment, dust in smoke can be efficiently separated and removed, the emission amount of CO2, NOX and the like is effectively reduced, and resistance loss of the device is smaller than equipment of the same type under the same working condition. The size of the device is small, heat exchange, dust removal and dehazing are achieved, and the smoke temperature is lowered.