Hidden air purifier

The invention discloses a hidden air purifier. The hidden air purifier comprises absorbing plates, multiple spoilers, a ventilation pipe, an exhaust fan, a heating device, an exhaust pipe and a controller, wherein the internals of the absorbing plates are hollowed; the absorbing plates are laminated on an indoor wall; activated carbon layers are arranged in the absorbing plates; the multiple spoilers are arranged in the absorbing plates; the spoilers are wave-shaped; one ends of the spoilers are connected to the inner walls of the absorbing plates, and the other ends extend into space, positioned on the back sides of the activated carbon layers, of the absorbing plates; one end of the ventilation pipe communicates with the internals of the absorbing plates, and the other end communicates indoors; the exhaust fan is arranged on the ventilation pipe; the heating device comprises heating wire layers arranged on the front sides of the activated carbon layers; one end of the exhaust pipe communicates to the ventil