Automatic troweling machine

The utility model relates to troweling equipment in the field of construction. An automatic troweling machine comprises a base, driving motors, a perpendicular lifting guide rail and a troweling device arranged on the lifting guide rail, wherein the perpendicular lifting guide rail comprises a fixed guide rail and a sliding guide rail; the sliding guide rail is clamped in the fixed guide rail; pulleys are arranged on the fixed guide rail and the sliding guide rail; the troweling device comprises a bracket arranged in a sliding chute of the sliding guide rail, a troweling plate arranged at the end part of the bracket and a plaster box arranged at the upper part of the troweling plate; a plaster box bracket is arranged between the plaster box and the bracket; a guide rail lifting pulley and a troweling driving pulley are arranged at the top of the sliding guide rail, and are connected with the first and second driving motors respectively; the first driving motor is arranged on the base; the second driving motor