Retaining wall construction device based on multilayer template

The invention discloses a retaining wall construction device based on a multilayer template. The retaining wall construction device comprises supporting and retaining templates and grouting pipes. Compared with manual retaining wall piling construction, the retaining wall construction device has the advantage of high construction speed. Compared with rubble concrete retaining wall construction, the retaining wall construction device has the advantage of saving of concrete amount. According to the retaining wall construction device provided by the invention, the supporting-retaining templates are partitioned into an upper layer of side plate and a lower layer of side plate, and construction is performed in a staging way, so that the manufacturing difficulty of the supporting-retaining templates and the construction difficulty are lowered, and meanwhile the construction safety is enhanced.