A water pipe connection structure (1000, 2000, 3000) for a burner, the water pipe connection structure (1000, 2000, 3000) comprising a first connecting head, a second connecting head, a first side plate, a cooling water pipe and a water inlet pipe, wherein the first connecting head is connected to the cooling water pipe, and the second connecting head is connected to the water inlet pipe; wherein the second connecting head is connected to the first connecting head; wherein the first connecting head is provided with a rotation stopping portion, the rotation stopping portion is clamped in the first side plate; and the first connecting head is clamped and fastened to the first side plate through the rotation stopping portion;the first side plate is provided with a first mounting hole, the first mounting hole is adapted to a shape of the rotation stopping portion; the rotation stopping portion is provided with first rotation stopping surfaces parallel to each other; the first mounting hole is provided with second rotation stopping surfaces at positions corresponding to the first rotation stopping surfaces; and the rotation stopping portion is clamped in the first mounting hole, the first rotation stopping surfaces abut against the second rotation stopping surfaces, to enable the first connecting head to be clamped and fastened to the first side plate; wherein the first connecting head further comprises a threaded portion; wherein the threaded portion is provided on the rotation stopping portion, the first connecting head is in a thread connection with the second connecting head through the threaded portion; wherein an end portion of the water inlet pipe extends outwards to form a clamping foot, the clamping foot is abutted against an end surface of the threaded portion; the clamping foot is compressed and fixed to the threaded portion, through a thread connection between the second connecting head and the threaded portion. the water pipe connection structure (1000, 2000, 3000) comprising a first connecting head, a second connecting head, a first side plate, a cooling water pipe and a water inlet pipe, wherein the first connecting head is connected to the cooling water pipe, and the second connecting head is connected to the water inlet pipe; wherein the second connecting head is connected to the first connecting head; wherein the first connecting head is provided with a rotation stopping portion, the rotation stopping portion is clamped in the first side plate; and the first connecting head is clamped and fastened to the first side plate through the rotation stopping portion;the first side plate is provided with a first mounting hole, the first mounting hole is adapted to a shape of the rotation stopping portion; the rotation stopping portion is provided with first rotation stopping surfaces parallel to each other; the first mounting hole is provided with second rotation stopping surfaces at positions corresponding to the first rotation stopping surfaces; and the rotation stopping portion is clamped in the first mounting hole, the first rotation stopping surfaces abut against the second rotation stopping surfaces, to enable the first connecting head to be clamped and fastened to the first side plate; wherein the first connecting head further comprises a threaded portion; wherein the threaded portion is provided on the rotation stopping portion, the first connecting head is in a thread connection with the second connecting head through the threaded portion; wherein an end portion of the water inlet pipe extends outwards to form a clamping foot, the clamping foot is abutted against an end surface of the threaded portion; the clamping foot is compressed and fixed to the threaded portion, through a thread connection between the second connecting head and the threaded portion.