Multifunctional bridge construction equipment comprises a shell, wherein a stirring cavity, an upper tooth groove and a lower tooth groove are formed in the shell; the upper tooth groove is positioned above the stirring cavity; the lower tooth groove is positioned below the stirring cavity; supporting columns are fixedly mounted on the bottom of the shell; a roller is mounted on the bottom of each supporting column in a rolling manner; a first rotating rod and a second rotating rod which are symmetric in the left-right direction are rotatably mounted in the stirring cavity; the upper end of the first rotating rod upwards extends and then is connected with a motor which is fixedly mounted on the top of the shell; a transmission piece which drives the first rotating rod and the second rotating rod to rotate simultaneously is mounted in the upper tooth groove; a left stretching groove and a right stretching groove which are symmetric in the left-right direction are formed between the lower tooth groove and the stirring cavity; and a left stretching rod and a right stretching rod can be respectively mounted in the left stretching groove and the right stretching groove in an up-down sliding manner.