Front-end temperature raising device

The utility model provides a front-end temperature raising device, and belongs to the technical field of sewage treatment. The front-end temperature raising device comprises a stainless steel water tank (1) and a sunshine board room cover (2), the sunshine board room cover (2) is located on the outer side of the stainless steel water tank (1), the top (21) of the sunshine board room cover (2) is lower than the top end (11) of the stainless steel water tank (1), and the top (21) of the sunshine board room cover (2) is high in north and low in south and is connected with the outer side of the stainless steel water tank (1) into a whole in a sealed mode; the stainless steel water tank (1) comprises a water inlet pipe (12), a water outlet pipe (13) and a sludge discharge pipe (14); the water outlet pipe (13) and the sludge discharge pipe (14) are positioned on the south-west side of the stainless steel water tank (1); the water inlet pipe (12) is positioned on the northeast side of the stainless steel water tank