The invention discloses a spraying type PM (Particulate Matter) 2.5 purifying device based on a TiO2 nano fluid. The spraying type PM2.5 purifying device comprises an
air blower, a gas inlet
pipe, a
water pipe, a water pump, a spraying purifying container, a first top cover, a
sprayer, a first demisting separation net, a communicating
pipe, a rotary purifying container, a bubble
cutting machine, a motor, a TiO2 nano fluid, an
exhaust pipe, a negative
ion generator, a silencer, a second top cover and a second demisting separation net, wherein the
sprayer is located at the inner side of the spraying purifying container, the first demisting separation net is fixedly connected into the spraying purifying container, the bubble
cutting machine and the second demisting separation net are located in the rotary purifying container, the
exhaust pipe is arranged in the second top cover, the
exhaust pipe is communicated with the inner side and the outer side of a shearing purifier, a transmission shaft of the motor penetrates through the side wall of the rotary purifying container and is connected with the bubble
cutting machine, and the spraying purifying container and the rotary purifying container are internally filled with the TiO2 nano fluid. The purifying device is capable of effectively adsorbing PM2.5 in air.