The invention discloses a paint pulverizer, and relates to the technical field of paint production equipment manufacture. The paint pulverizer comprises a pulverizing cylinder, whose bottom is provided with a first filtering screen, the pulverizing cylinder is connected to a feed hopper, a rotation shaft and a plurality of pulverizing blades are arranged in the pulverizing cylinder, the plurality of pulverizing blades are fixed on the rotation shaft, one end of the rotation shaft is connected to a first motor through mechanical transmission; a powder pressing box is arranged under the pulverizing cylinder, the powder pressing box is provided with a discharge opening provided with a second filtering screen, two press rollers, which rotate in the opposite directions, are arranged in the powder pressing box and connected through gear transmission, and one of the press rollers is connected to a second motor. The paint fed into the pulverizing cylinder is pulverized by the pulverizing blades, then screened by the first filtering screen, transported to the powder press box, rolled by two press rollers that rotate in the reverse directions, and finally screened by the second filtering screen, the paint is more radically pulverized, the powder is finer, and the paint luster is brighter, compared to the prior art.