A threaded connection for double-walled pipes, including an outer pipe, an inner pipe including an outward projection having a threaded conical end, a component connector having a threaded conical end threaded with the outward projection threaded conical end to provide a first threaded connection. The connector having an annular groove and a sealing ring. The threaded connection additionally including an intermediate piece with an inner threaded surface threaded with an outward projection outer threaded surface to provide a second threaded connection configured to turn in an opposite direction with respect to the first threaded connection. The intermediate piece also having a pressing surface that presses the sealing ring against the connector, and a sliding joint engaged with an outer pipe outward projection.