The invention discloses a novel fire fighting static pipeline mixer and a fire fighting device, wherein the mixer comprises a main pipeline, a water inlet pipeline, a water outlet pipeline, a feed inlet, a flow guiding plate and a spiral blade. Two ends of the main pipeline are provided with connection flanges, namely a front end connection flange and a back end connection flange. The front of the main pipeline is provided with the water inlet pipeline, the rear end of the main pipeline is provided with the water outlet pipeline, and the water inlet pipeline and the water outlet pipeline both adopt concentric different-diameter pipes. The water inlet pipeline and the main pipeline are connected through the front end connection flange and are fixed through connection bolts. The water outlet pipeline and the main pipeline are connected through the rear end connection flange and are fixed through connection bolts. The front end of the water inlet pipeline is provided with a water inlet pipe flange, and the rear end of the water outlet pipeline is provided with a water outlet pipe flange. The feed inlet is arranged on the water inlet pipeline, and a guide plate for refining drugs and a rotational blade for generating rotational flow are arranged inside the main pipeline. The novel fire fighting static pipeline mixer does not need additional power, and can effectively reduce large particles caused by an agglomeration phenomenon in a mixture liquid during solid-liquid mixing.